Washington Metropolitan Area
Encyclopedia
The Washington Metropolitan Area is the metropolitan area
Metropolitan area
The term metropolitan area refers to a region consisting of a densely populated urban core and its less-populated surrounding territories, sharing industry, infrastructure, and housing. A metropolitan area usually encompasses multiple jurisdictions and municipalities: neighborhoods, townships,...

 centered on Washington, D.C.
Washington, D.C.
Washington, D.C., formally the District of Columbia and commonly referred to as Washington, "the District", or simply D.C., is the capital of the United States. On July 16, 1790, the United States Congress approved the creation of a permanent national capital as permitted by the U.S. Constitution....

, the capital of the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

. The area includes all of the federal district
Federal district
Federal districts are a type of administrative division of a federation, under the direct control of a federal government. They exist in various countries and states all over the world.-United States:...

 and parts of the U.S. state
U.S. state
A U.S. state is any one of the 50 federated states of the United States of America that share sovereignty with the federal government. Because of this shared sovereignty, an American is a citizen both of the federal entity and of his or her state of domicile. Four states use the official title of...

s of Maryland
Maryland
Maryland is a U.S. state located in the Mid Atlantic region of the United States, bordering Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware to its east...

, Virginia
Virginia
The Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...

, and West Virginia
West Virginia
West Virginia is a state in the Appalachian and Southeastern regions of the United States, bordered by Virginia to the southeast, Kentucky to the southwest, Ohio to the northwest, Pennsylvania to the northeast and Maryland to the east...

.

The Office of Management and Budget defines the area as the Washington–Arlington–Alexandria, DC–VA–MD–WV Metropolitan Statistical Area, a metropolitan statistical area used for statistical purposes by the United States Census Bureau
United States Census Bureau
The United States Census Bureau is the government agency that is responsible for the United States Census. It also gathers other national demographic and economic data...

 and other agencies. The area includes as its principal cities Washington as well as the Virginia cities of Arlington and Alexandria
Alexandria, Virginia
Alexandria is an independent city in the Commonwealth of Virginia. As of 2009, the city had a total population of 139,966. Located along the Western bank of the Potomac River, Alexandria is approximately six miles south of downtown Washington, D.C.Like the rest of northern Virginia, as well as...

. The Office of Management and Budget also includes the metropolitan statistical area as part of the larger Baltimore–Washington Metropolitan Area, which has a population of over 8.55 million.

The area is also sometimes referred to as the National Capital Region, particularly by federal agencies such as the Department of Homeland Security
United States Department of Homeland Security
The United States Department of Homeland Security is a cabinet department of the United States federal government, created in response to the September 11 attacks, and with the primary responsibilities of protecting the territory of the United States and protectorates from and responding to...

. The area in the region that is surrounded by Interstate 495
Interstate 495 (Capital Beltway)
Interstate 495 is a Interstate Highway that surrounds the United States' capital of Washington, D.C., and its inner suburbs in adjacent Maryland and Virginia. I-495 is widely known as the Capital Beltway or simply the Beltway, especially when the context of Washington, D.C., is clear...

 is also referred to as the "Capital Beltway
Interstate 495 (Capital Beltway)
Interstate 495 is a Interstate Highway that surrounds the United States' capital of Washington, D.C., and its inner suburbs in adjacent Maryland and Virginia. I-495 is widely known as the Capital Beltway or simply the Beltway, especially when the context of Washington, D.C., is clear...

". The Virginia portion of the area is known as Northern Virginia
Northern Virginia
Northern Virginia consists of several counties and independent cities in the Commonwealth of Virginia, in a widespread region generally radiating southerly and westward from Washington, D.C...

.

The Washington Metropolitan Area is the most educated and by some measures, the most affluent metropolitan area in the United States. , the population of the Washington Metropolitan Area was estimated to be 5,582,170 (+16.39%), making it the seventh-largest
Table of United States Metropolitan Statistical Areas
thumb|An enlargeable map of the 942 [[Core Based Statistical Area]]s of the [[United States]]. The 367 [[Metropolitan Statistical Area]]s are shown in red....

 metropolitan area in the country.

Composition

The U.S. Census Bureau divides the Washington statistical metropolitan area into two metropolitan divisions:
  • the Washington–Arlington–Alexandria, DC–VA–MD–WV Metropolitan Division, comprising the majority of the metropolitan area
  • the Bethesda–Gaithersburg–Frederick, MD Metropolitan Division, consisting of Montgomery and Frederick counties

Note that Metropolitan Area and Metropolitan Statistical Area should not be confused with Metropolitan Division.

Political subdivisions

The area includes the following counties, districts, and independent cities:

Maryland

The following counties are categorized as part of the Washington–Arlington–Alexandria, DC–VA–MD–WV Metropolitan Statistical Area:
  • Calvert County
    Calvert County, Maryland
    Calvert County is a county located in the U.S. state of Maryland. It occupies the Calvert Peninsula which is bordered on the east by the Chesapeake Bay and on the west by the Patuxent River. Calvert County is part of the Southern Maryland region. Calvert County's residents are among the highest...

  • Charles County
    Charles County, Maryland
    Charles County is a county in the south central portion of the U.S. state of Maryland.As of 2010, the population was 146,551. Its county seat is La Plata. This county was named for Charles Calvert , third Baron Baltimore....

  • Frederick County
    Frederick County, Maryland
    Frederick County is a county located in the western part of the U.S. state of Maryland, bordering the southern border of Pennsylvania and the northeastern border of Virginia. As of the 2010 Census, the population was 233,385....

  • Montgomery County
    Montgomery County, Maryland
    Montgomery County is a county in the U.S. state of Maryland, situated just to the north of Washington, D.C., and southwest of the city of Baltimore. It is one of the most affluent counties in the United States, and has the highest percentage of residents over 25 years of age who hold post-graduate...

  • Prince George's County
    Prince George's County, Maryland
    Prince George's County is a county located in the U.S. state of Maryland, immediately north, east, and south of Washington, DC. As of 2010, it has a population of 863,420 and is the wealthiest African-American majority county in the nation....



Although associated with the Washington Metropolitan Area, the following counties are categorized as part of the Baltimore-Towson, MD Metropolitan Statistical Area
Baltimore Metropolitan Area
The Baltimore-Towson Metropolitan Statistical Area, also known as Central Maryland, is a Metropolitan Statistical Area in Maryland as defined by the United States Office of Management and Budget...

:
  • Anne Arundel County
    Anne Arundel County, Maryland
    Anne Arundel County is a county located in the U.S. state of Maryland. It is named for Anne Arundell , a member of the ancient family of Arundells in Cornwall, England and the wife of Cæcilius Calvert, 2nd Baron Baltimore. Its county seat is Annapolis, which is also the capital of the state...

  • Howard County
    Howard County, Maryland
    -2010:Whereas according to the 2010 U.S. Census Bureau:*62.2% White*17.5% Black*0.3% Native American*14.4% Asian*0.0% Native Hawaiian or Pacific Islander*3.6% Two or more races*2.0% Other races*5.8% Hispanic or Latino -2000:...



Although associated with the Washington Metropolitan Area, the following county is categorized as part of the Lexington Park, MD Micropolitan Statistical Area
Lexington Park, Maryland
Lexington Park is a census-designated place in St. Mary's County, Maryland, United States, and the principal community of the Lexington Park, Maryland Micropolitan Statistical Area...

:
  • St. Mary's County

Virginia

Counties
  • Arlington County
    Arlington County, Virginia
    Arlington County is a county in the Commonwealth of Virginia. The land that became Arlington was originally donated by Virginia to the United States government to form part of the new federal capital district. On February 27, 1801, the United States Congress organized the area as a subdivision of...

  • Clarke County
    Clarke County, Virginia
    Clarke County is a county in the Commonwealth of Virginia. As of 2010, the population was 14,034. Its county seat is Berryville.-History:Clarke County was established in 1836 by Thomas Fairfax, 6th Lord Fairfax of Cameron who built a home, Greenway Court, on part of his 5 million acre property,...

  • Fairfax County
    Fairfax County, Virginia
    Fairfax County is a county in Virginia, in the United States. Per the 2010 Census, the population of the county is 1,081,726, making it the most populous jurisdiction in the Commonwealth of Virginia, with 13.5% of Virginia's population...

  • Fauquier County
    Fauquier County, Virginia
    As of the census of 2000, there were 55,139 people, 19,842 households, and 15,139 families residing in the county. The population density was 85 people per square mile . There were 21,046 housing units at an average density of 32 per square mile...

  • Frederick County
    Frederick County, Virginia
    Frederick County is a county located in the Commonwealth of Virginia. It is included in the Winchester, Virginia-West Virginia Metropolitan Statistical Area. It was formed in 1743 by the splitting of Orange County. For ten years it was the home of George Washington. As of 2010, the population was...

  • Loudoun County
    Loudoun County, Virginia
    Loudoun County is a county located in the Commonwealth of Virginia, and is part of the Washington Metropolitan Area. As of the 2010 U.S. Census, the county is estimated to be home to 312,311 people, an 84 percent increase over the 2000 figure of 169,599. That increase makes the county the fourth...

  • Prince William County
    Prince William County, Virginia
    -National protected areas:* Featherstone National Wildlife Refuge* Manassas National Battlefield Park* Occoquan Bay National Wildlife Refuge* Prince William Forest Park-Government and politics:...

  • Spotsylvania County
    Spotsylvania County, Virginia
    As of the census of 2000, there were 90,395 people, 31,308 households, and 24,639 families residing in the county. The population density was 226 people per square mile . There were 33,329 housing units at an average density of 83 per square mile...

  • Stafford County
    Stafford County, Virginia
    Stafford County is a county located in the Commonwealth of Virginia, a U.S. state, and just across the Rappahannock River from the City of Fredericksburg. As of the 2000 census, the population was 92,446, increasing to 128,961 in 2010.. Its county seat is Stafford. In 2006, and again in 2009,...

  • Warren County
    Warren County, Virginia
    As of the census of 2000, there were 31,584 people, 12,087 households, and 8,521 families residing in the county. The population density was 148 people per square mile . There were 13,299 housing units at an average density of 62 per square mile...


Independent cities:
  • City of Alexandria
    Alexandria, Virginia
    Alexandria is an independent city in the Commonwealth of Virginia. As of 2009, the city had a total population of 139,966. Located along the Western bank of the Potomac River, Alexandria is approximately six miles south of downtown Washington, D.C.Like the rest of northern Virginia, as well as...

  • City of Fairfax
    Fairfax, Virginia
    The City of Fairfax is an independent city forming an enclave within the confines of Fairfax County, in the Commonwealth of Virginia in the United States. Although politically independent of the surrounding county, the City is nevertheless the county seat....

  • City of Falls Church
    Falls Church, Virginia
    The City of Falls Church is an independent city in Virginia, United States, in the Washington Metropolitan Area. The city population was 12,332 in 2010, up from 10,377 in 2000. Taking its name from The Falls Church, an 18th-century Anglican parish, Falls Church gained township status within...

  • City of Fredericksburg
    Fredericksburg, Virginia
    Fredericksburg is an independent city in the Commonwealth of Virginia located south of Washington, D.C., and north of Richmond. As of the 2010 census, the city had a population of 24,286...

  • City of Manassas
    Manassas, Virginia
    The City of Manassas is an independent city surrounded by Prince William County and the independent city of Manassas Park in the Commonwealth of Virginia in the United States. Its population was 37,821 as of 2010. Manassas also surrounds the county seat for Prince William County but that county...

  • City of Manassas Park

Geographic designations

The following information corresponds to the map to the right, which highlights labor patterns of regional counties. (Note that although Arlington County and the City of Alexandria act as the Virginia suburbs of the core business district of Washington, D.C., those regions are not suburbs of the Fairfax County core business district; Loudoun and Prince William Counties serve as Fairfax County's suburban region. All three counties together also help comprise the suburban jurisdictions to Washington, D.C.)

Total Regions: 22 (6 independent cities
Independent city (United States)
In the United States, an independent city is a city that does not belong to any particular county. Because counties have historically been a strong institution in local government in most of the United States, independent cities are relatively rare outside of Virginia , whose state constitution...

, 15 counties, 1 district), plus 3 Maryland counties associated with unofficially (Grand-total 25)

By geographic type:
  • Core
    Core
    - Science and Academics :* Core , in mathematics, an object in group theory* Core , in mathematics, a subset of the domain of a closable operator* Core , in mathematics, the homomorphically minimal subgraph of a graph...

    : 3 Regions (1 independent city, 1 county, 1 district)
  • Suburban: 12 Regions (5 independent cities, 7 counties)
  • Exurban: 8 Regions (1 independent city, 7 counties)


By state:
  • Maryland
    Maryland
    Maryland is a U.S. state located in the Mid Atlantic region of the United States, bordering Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware to its east...

    : 5 Regions (0 independent cities, 5 counties)
  • Virginia
    Virginia
    The Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...

    : 15 Regions (6 independent cities, 9 counties)
  • West Virginia
    West Virginia
    West Virginia is a state in the Appalachian and Southeastern regions of the United States, bordered by Virginia to the southeast, Kentucky to the southwest, Ohio to the northwest, Pennsylvania to the northeast and Maryland to the east...

    : 1 Region (0 independent cities, 1 county)


By region type:
  • Independent cities
    Independent city (United States)
    In the United States, an independent city is a city that does not belong to any particular county. Because counties have historically been a strong institution in local government in most of the United States, independent cities are relatively rare outside of Virginia , whose state constitution...

    : 6 (Virginia: 6)
  • Counties: 15 (Maryland: 5, Virginia: 9, West Virginia: 1)
  • District
    District
    Districts are a type of administrative division, in some countries managed by a local government. They vary greatly in size, spanning entire regions or counties, several municipalities, or subdivisions of municipalities.-Austria:...

    : 1

Core

  • Total: 3
    • District of Columbia: 1
      • Washington
        Washington, D.C.
        Washington, D.C., formally the District of Columbia and commonly referred to as Washington, "the District", or simply D.C., is the capital of the United States. On July 16, 1790, the United States Congress approved the creation of a permanent national capital as permitted by the U.S. Constitution....

    • Virginia
      Virginia
      The Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...

      : 2
      • Independent cities: 1
        • City of Alexandria
          Alexandria, Virginia
          Alexandria is an independent city in the Commonwealth of Virginia. As of 2009, the city had a total population of 139,966. Located along the Western bank of the Potomac River, Alexandria is approximately six miles south of downtown Washington, D.C.Like the rest of northern Virginia, as well as...

      • Counties: 1
        • Arlington County
          Arlington County, Virginia
          Arlington County is a county in the Commonwealth of Virginia. The land that became Arlington was originally donated by Virginia to the United States government to form part of the new federal capital district. On February 27, 1801, the United States Congress organized the area as a subdivision of...


Suburban

  • Total: 12
    • Maryland
      Maryland
      Maryland is a U.S. state located in the Mid Atlantic region of the United States, bordering Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware to its east...

       4
      • Counties: 4
        • Charles County
          Charles County, Maryland
          Charles County is a county in the south central portion of the U.S. state of Maryland.As of 2010, the population was 146,551. Its county seat is La Plata. This county was named for Charles Calvert , third Baron Baltimore....

        • Frederick County
          Frederick County, Maryland
          Frederick County is a county located in the western part of the U.S. state of Maryland, bordering the southern border of Pennsylvania and the northeastern border of Virginia. As of the 2010 Census, the population was 233,385....

        • Montgomery County
          Montgomery County, Maryland
          Montgomery County is a county in the U.S. state of Maryland, situated just to the north of Washington, D.C., and southwest of the city of Baltimore. It is one of the most affluent counties in the United States, and has the highest percentage of residents over 25 years of age who hold post-graduate...

        • Prince George's County
          Prince George's County, Maryland
          Prince George's County is a county located in the U.S. state of Maryland, immediately north, east, and south of Washington, DC. As of 2010, it has a population of 863,420 and is the wealthiest African-American majority county in the nation....

    • Virginia
      Virginia
      The Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...

      : 8
      • Independent cities: 4
        • City of Fairfax
          Fairfax, Virginia
          The City of Fairfax is an independent city forming an enclave within the confines of Fairfax County, in the Commonwealth of Virginia in the United States. Although politically independent of the surrounding county, the City is nevertheless the county seat....

        • City of Falls Church
          Falls Church, Virginia
          The City of Falls Church is an independent city in Virginia, United States, in the Washington Metropolitan Area. The city population was 12,332 in 2010, up from 10,377 in 2000. Taking its name from The Falls Church, an 18th-century Anglican parish, Falls Church gained township status within...

        • City of Manassas
          Manassas, Virginia
          The City of Manassas is an independent city surrounded by Prince William County and the independent city of Manassas Park in the Commonwealth of Virginia in the United States. Its population was 37,821 as of 2010. Manassas also surrounds the county seat for Prince William County but that county...

        • City of Manassas Park
      • Counties: 3
        • Fairfax County
          Fairfax County, Virginia
          Fairfax County is a county in Virginia, in the United States. Per the 2010 Census, the population of the county is 1,081,726, making it the most populous jurisdiction in the Commonwealth of Virginia, with 13.5% of Virginia's population...

        • Loudoun County
          Loudoun County, Virginia
          Loudoun County is a county located in the Commonwealth of Virginia, and is part of the Washington Metropolitan Area. As of the 2010 U.S. Census, the county is estimated to be home to 312,311 people, an 84 percent increase over the 2000 figure of 169,599. That increase makes the county the fourth...

        • Prince William County
          Prince William County, Virginia
          -National protected areas:* Featherstone National Wildlife Refuge* Manassas National Battlefield Park* Occoquan Bay National Wildlife Refuge* Prince William Forest Park-Government and politics:...


Exurban

An exurb is "a non-rural residential community located outside a city, beyond the suburbs".
  • Total: 8
    • Maryland
      Maryland
      Maryland is a U.S. state located in the Mid Atlantic region of the United States, bordering Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware to its east...

      : 1
      • Counties: 1
        • Calvert County
          Calvert County, Maryland
          Calvert County is a county located in the U.S. state of Maryland. It occupies the Calvert Peninsula which is bordered on the east by the Chesapeake Bay and on the west by the Patuxent River. Calvert County is part of the Southern Maryland region. Calvert County's residents are among the highest...

    • Virginia
      Virginia
      The Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...

      : 6
      • Independent cities: 1
        • City of Fredericksburg
          Fredericksburg, Virginia
          Fredericksburg is an independent city in the Commonwealth of Virginia located south of Washington, D.C., and north of Richmond. As of the 2010 census, the city had a population of 24,286...

      • Counties: 5
        • Clarke County
          Clarke County, Virginia
          Clarke County is a county in the Commonwealth of Virginia. As of 2010, the population was 14,034. Its county seat is Berryville.-History:Clarke County was established in 1836 by Thomas Fairfax, 6th Lord Fairfax of Cameron who built a home, Greenway Court, on part of his 5 million acre property,...

        • Fauquier County
          Fauquier County, Virginia
          As of the census of 2000, there were 55,139 people, 19,842 households, and 15,139 families residing in the county. The population density was 85 people per square mile . There were 21,046 housing units at an average density of 32 per square mile...

        • Spotsylvania County
          Spotsylvania County, Virginia
          As of the census of 2000, there were 90,395 people, 31,308 households, and 24,639 families residing in the county. The population density was 226 people per square mile . There were 33,329 housing units at an average density of 83 per square mile...

        • Stafford County
          Stafford County, Virginia
          Stafford County is a county located in the Commonwealth of Virginia, a U.S. state, and just across the Rappahannock River from the City of Fredericksburg. As of the 2000 census, the population was 92,446, increasing to 128,961 in 2010.. Its county seat is Stafford. In 2006, and again in 2009,...

        • Warren County
          Warren County, Virginia
          As of the census of 2000, there were 31,584 people, 12,087 households, and 8,521 families residing in the county. The population density was 148 people per square mile . There were 13,299 housing units at an average density of 62 per square mile...

    • West Virginia
      West Virginia
      West Virginia is a state in the Appalachian and Southeastern regions of the United States, bordered by Virginia to the southeast, Kentucky to the southwest, Ohio to the northwest, Pennsylvania to the northeast and Maryland to the east...

      : 1
      • Counties: 1
        • Jefferson County
          Jefferson County, West Virginia
          Jefferson County is a county located in the U.S. state of West Virginia. As of 2010, the population was 53,498. Its county seat is Charles Town...


Associated with (unofficially)

(These areas are not shown on the labor pattern map.)
  • Total: 3
    • Maryland: 3
      • Baltimore-Towson, MD Metropolitan Statistical Area
        Baltimore Metropolitan Area
        The Baltimore-Towson Metropolitan Statistical Area, also known as Central Maryland, is a Metropolitan Statistical Area in Maryland as defined by the United States Office of Management and Budget...

        : 2
        • Anne Arundel County
          Anne Arundel County, Maryland
          Anne Arundel County is a county located in the U.S. state of Maryland. It is named for Anne Arundell , a member of the ancient family of Arundells in Cornwall, England and the wife of Cæcilius Calvert, 2nd Baron Baltimore. Its county seat is Annapolis, which is also the capital of the state...

        • Howard County
          Howard County, Maryland
          -2010:Whereas according to the 2010 U.S. Census Bureau:*62.2% White*17.5% Black*0.3% Native American*14.4% Asian*0.0% Native Hawaiian or Pacific Islander*3.6% Two or more races*2.0% Other races*5.8% Hispanic or Latino -2000:...

      • Lexington Park, MD Micropolitan Statistical Area
        Lexington Park, Maryland
        Lexington Park is a census-designated place in St. Mary's County, Maryland, United States, and the principal community of the Lexington Park, Maryland Micropolitan Statistical Area...

        : 1
        • St. Mary's County

Metropolitan Washington Council of Governments

Founded in 1957, the Metropolitan Washington Council of Governments
Metropolitan Washington Council of Governments
The Metropolitan Washington Council of Governments is a regional organization of Washington area local governments. MWCOG comprises 21 local governments in the Washington Metropolitan Area, as well as area members of the Maryland and Virginia state legislatures, the U.S. Senate, and the U.S. House...

 (MWCOG) is a regional organization of 21 Washington-area local governments, as well as area members of the Maryland
Maryland General Assembly
The Maryland General Assembly is the state legislature of the U.S. state of Maryland. It is a bicameral body. The upper chamber, the Maryland State Senate, has 47 representatives and the lower chamber, the Maryland House of Delegates, has 141 representatives...

 and Virginia
Virginia General Assembly
The Virginia General Assembly is the legislative body of the Commonwealth of Virginia, and the oldest legislative body in the Western Hemisphere, established on July 30, 1619. The General Assembly is a bicameral body consisting of a lower house, the Virginia House of Delegates, with 100 members,...

 state legislatures, the U.S. Senate, and the U.S. House of Representatives. MWCOG provides a forum for discussion and the development of regional responses to issues regarding the environment, transportation, public safety, homeland security, affordable housing, community planning, and economic development.

The National Capital Region Transportation Planning Board, a component of MWCOG, is the federally-designated metropolitan planning organization
Metropolitan planning organization
A metropolitan planning organization is a federally-mandated and federally-funded transportation policy-making organization in the United States that is made up of representatives from local government and governmental transportation authorities...

 for the metropolitan Washington area.

Principal cities

The metropolitan area includes the following principal cities (most of which are not incorporated as cities; one, Arlington, is actually a county):
  • Washington, D.C.
    Washington, D.C.
    Washington, D.C., formally the District of Columbia and commonly referred to as Washington, "the District", or simply D.C., is the capital of the United States. On July 16, 1790, the United States Congress approved the creation of a permanent national capital as permitted by the U.S. Constitution....

  • Arlington, Virginia
    Arlington County, Virginia
    Arlington County is a county in the Commonwealth of Virginia. The land that became Arlington was originally donated by Virginia to the United States government to form part of the new federal capital district. On February 27, 1801, the United States Congress organized the area as a subdivision of...

  • Alexandria, Virginia
    Alexandria, Virginia
    Alexandria is an independent city in the Commonwealth of Virginia. As of 2009, the city had a total population of 139,966. Located along the Western bank of the Potomac River, Alexandria is approximately six miles south of downtown Washington, D.C.Like the rest of northern Virginia, as well as...

  • Bethesda, Maryland
    Bethesda, Maryland
    Bethesda is a census designated place in southern Montgomery County, Maryland, United States, just northwest of Washington, D.C. It takes its name from a local church, the Bethesda Meeting House , which in turn took its name from Jerusalem's Pool of Bethesda...

  • Bowie, Maryland
    Bowie, Maryland
    Bowie is a city in Prince George's County, Maryland, United States. The population was 54,727 at the 2010 census. Bowie has grown from a small railroad stop to the largest municipality in Prince George's County, and the fifth most populous city and third largest city by area in the state of...

  • Centreville, Virginia
    Centreville, Virginia
    Centreville is an unincorporated community in Fairfax County, Virginia, United States. Recognized by the U.S. Census Bureau as a Census Designated Place , the community population was 71,135 as of the 2010 census and is approximately west of Washington, DC.-Colonial Period:Beginning in the 1760s,...

  • Chantilly, Virginia
    Chantilly, Virginia
    Chantilly is an unincorporated community located in western Fairfax County and southeastern Loudoun County of Northern Virginia. Recognized by the U.S. Census Bureau as a census designated place , the community population was 23,039 as of the 2010 census -- down from 41,041 in 2000, due to the...

  • College Park, Maryland
    College Park, Maryland
    College Park is a city in Prince George's County, Maryland, USA. The population was 30,413 at the 2010 census. It is best known as the home of the University of Maryland, College Park, and since 1994 the city has also been home to the "Archives II" facility of the U.S...

  • Fairfax, Virginia
    Fairfax, Virginia
    The City of Fairfax is an independent city forming an enclave within the confines of Fairfax County, in the Commonwealth of Virginia in the United States. Although politically independent of the surrounding county, the City is nevertheless the county seat....

  • Falls Church, Virginia
    Falls Church, Virginia
    The City of Falls Church is an independent city in Virginia, United States, in the Washington Metropolitan Area. The city population was 12,332 in 2010, up from 10,377 in 2000. Taking its name from The Falls Church, an 18th-century Anglican parish, Falls Church gained township status within...

  • Frederick, Maryland
    Frederick, Maryland
    Frederick is a city in north-central Maryland. It is the county seat of Frederick County, the largest county by area in the state of Maryland. Frederick is an outlying community of the Washington-Arlington-Alexandria, DC-VA-MD-WV Metropolitan Statistical Area, which is part of a greater...

  • Gaithersburg, Maryland
    Gaithersburg, Maryland
    Gaithersburg is a city in Montgomery County, Maryland, United States. The city had a population of 59,933 at the 2010 census, making it the fourth largest incorporated city in the state, behind Baltimore, Frederick, and Rockville...

  • Germantown, Maryland
  • Herndon, Virginia
    Herndon, Virginia
    Herndon is a town in Fairfax County, Virginia, in the Washington, D.C. metropolitan area of the United States. The population was 21,655 at the 2000 census, which makes it the largest of three towns in the county.-History:...

  • Leesburg, Virginia
    Leesburg, Virginia
    Leesburg is a historic town in, and county seat of, Loudoun County, Virginia, United States of America. Leesburg is located west-northwest of Washington, D.C. along the base of the Catoctin Mountain and adjacent to the Potomac River. Its population according the 2010 Census is 42,616...

  • Manassas, Virginia
    Manassas, Virginia
    The City of Manassas is an independent city surrounded by Prince William County and the independent city of Manassas Park in the Commonwealth of Virginia in the United States. Its population was 37,821 as of 2010. Manassas also surrounds the county seat for Prince William County but that county...

  • Reston, Virginia
    Reston, Virginia
    Reston is a census-designated place in Fairfax County, Virginia, United States, within the Washington, D.C. metropolitan area. The population was 58,404, at the 2010 Census and 56,407 at the 2000 census...

  • Rockville, Maryland
    Rockville, Maryland
    Rockville is the county seat of Montgomery County, Maryland, United States. It is a major incorporated city in the central part of Montgomery County and forms part of the Baltimore-Washington Metropolitan Area. The 2010 U.S...

  • Silver Spring, Maryland
    Silver Spring, Maryland
    Silver Spring is an unincorporated area and census-designated place in Montgomery County, Maryland, United States. It had a population of 71,452 at the 2010 census, making it the fourth most populous place in Maryland, after Baltimore, Columbia, and Germantown.The urbanized, oldest, and...

  • Springfield, Virginia
    Springfield, Virginia
    Springfield is a census-designated place in Fairfax County, Virginia, United States and a suburb of Washington, D.C. The Springfield CDP is recognized by the U.S. Census Bureau with a population of 30,484 as of the 2010 census. Homes and businesses in bordering CDPs including North Springfield,...

  • Suitland, Maryland
  • Takoma Park, Maryland
    Takoma Park, Maryland
    Takoma Park is a city in Montgomery County, Maryland, United States. It is a suburb of Washington, D.C., and part of the Washington Metropolitan Area. Founded in 1883 and incorporated in 1890, Takoma Park, informally called "Azalea City," is a Tree City USA and a nuclear-free zone...

  • Tysons Corner, Virginia
    Tysons Corner, Virginia
    Tysons Corner is an unincorporated census-designated place in Fairfax County, Virginia, United States. Part of the Washington Metropolitan Area located in Northern Virginia, Tysons Corner lies between the community of McLean and the town of Vienna along the Capital Beltway . The population was...

  • Vienna, Virginia
    Vienna, Virginia
    Vienna is a town in Fairfax County, Virginia, United States. As of the 2010 United States Census, it had a population of 15,687. Significantly more people live in zip codes with the Vienna postal addresses bordered approximately by Interstate 66 on the south, Interstate 495 on the east, Route 7 to...

  • Waldorf, Maryland
    Waldorf, Maryland
    Waldorf, Maryland is an unincorporated community and census-designated place in Charles County, Maryland, United States. It is south-southeast of Washington, D.C. The population of the census-designated area only was 67,752 at the 2010 census...


Demographics

Presidential election results
Year DEM
Democratic Party (United States)
The Democratic Party is one of two major contemporary political parties in the United States, along with the Republican Party. The party's socially liberal and progressive platform is largely considered center-left in the U.S. political spectrum. The party has the lengthiest record of continuous...

GOP
Republican Party (United States)
The Republican Party is one of the two major contemporary political parties in the United States, along with the Democratic Party. Founded by anti-slavery expansion activists in 1854, it is often called the GOP . The party's platform generally reflects American conservatism in the U.S...

Others
2008 68.0% 1,603,902 31.0% 728,916 1.0% 25,288
2004 61.0% 1,258,743 38.0% 785,144 1.4% 19,735
2000 58.5% 1,023,089 37.9% 663,590 3.6% 62,437
1996 57.0% 861,881 37.0% 558,830 6.0% 89,259
1992 53.0% 859,889 34.1% 553.369 12.9% 209,651
1988 50.4% 684,453 48.6% 659,344 1.0% 14,219
1984 51.0% 653,568 48.5% 621,377 0.4% 5,656
1980 44.7% 484,590 44.6% 482,506 11.1% 115,797
1976 54.2% 590,481 44.9% 488,995 1.0% 10,654
1972 44.2% 431,257 54.8% 534,235 1.1% 10,825
1968 49.4% 414,345 39.1% 327,662 11.5% 96,701
1964 69.8% 495,490 30.2% 214,293 0.1% 462
1960 52.5% 204,614 47.3% 184,499 0.1% 593

Politics

The relative strength of the major political parties within the region is shown by the presidential election results since 1960, as presented in the table to the right.

Racial composition

The area has been a magnet for international immigration since the late 1960s
1960s
The 1960s was the decade that started on January 1, 1960, and ended on December 31, 1969. It was the seventh decade of the 20th century.The 1960s term also refers to an era more often called The Sixties, denoting the complex of inter-related cultural and political trends across the globe...

. It is also a magnet for internal migration (persons moving from one region of the U.S. to another). Census estimates show that persons of post-1965 immigrant stock will likely represent 25% of the region's population by 2010, forming a bigger population bloc than native blacks for the first time.

Racial composition of the Washington, D.C. area:

2006
  • White
    White American
    White Americans are people of the United States who are considered or consider themselves White. The United States Census Bureau defines White people as those "having origins in any of the original peoples of Europe, the Middle East, or North Africa...

     : 51.7%
  • Black
    African American
    African Americans are citizens or residents of the United States who have at least partial ancestry from any of the native populations of Sub-Saharan Africa and are the direct descendants of enslaved Africans within the boundaries of the present United States...

     : 26.3%
  • Asian
    Asian American
    Asian Americans are Americans of Asian descent. The U.S. Census Bureau definition of Asians as "Asian” refers to a person having origins in any of the original peoples of the Far East, Southeast Asia, or the Indian subcontinent, including, for example, Cambodia, China, India, Indonesia, Japan,...

     : 8.4%
  • Hispanic
    Hispanic and Latino Americans
    Hispanic or Latino Americans are Americans with origins in the Hispanic countries of Latin America or in Spain, and in general all persons in the United States who self-identify as Hispanic or Latino.1990 Census of Population and Housing: A self-designated classification for people whose origins...

     : 11.6%
  • Mixed
    Multiracial
    The terms multiracial and mixed-race describe people whose ancestries come from multiple races. Unlike the term biracial, which often is only used to refer to having parents or grandparents of two different races, the term multiracial may encompass biracial people but can also include people with...

     and Other : 2.0%


1980
  • White : 67.8%
  • Black : 26.0%
  • Asian : 2.5%
  • Hispanic : 2.8%
  • Mixed and Other : 0.9%

Educational attainment and affluence

The Washington Metropolitan Area has ranked as the highest-educated metropolitan area in the nation for four decades. As of the 2006–2008 American Community Survey
American Community Survey
The American Community Survey is an ongoing statistical survey by the U.S. Census Bureau, sent to approximately 250,000 addresses monthly . It regularly gathers information previously contained only in the long form of the decennial census...

, the three most educated places with 200,000 people or more in Washington–Arlington–Alexandria by bachelor's degree
Bachelor's degree
A bachelor's degree is usually an academic degree awarded for an undergraduate course or major that generally lasts for three or four years, but can range anywhere from two to six years depending on the region of the world...

 attainment (population 25 and over) are Arlington, Virginia
Arlington County, Virginia
Arlington County is a county in the Commonwealth of Virginia. The land that became Arlington was originally donated by Virginia to the United States government to form part of the new federal capital district. On February 27, 1801, the United States Congress organized the area as a subdivision of...

 (68.0%), Fairfax County, Virginia
Fairfax County, Virginia
Fairfax County is a county in Virginia, in the United States. Per the 2010 Census, the population of the county is 1,081,726, making it the most populous jurisdiction in the Commonwealth of Virginia, with 13.5% of Virginia's population...

 (58.8%), and Montgomery County, Maryland
Montgomery County, Maryland
Montgomery County is a county in the U.S. state of Maryland, situated just to the north of Washington, D.C., and southwest of the city of Baltimore. It is one of the most affluent counties in the United States, and has the highest percentage of residents over 25 years of age who hold post-graduate...

 (56.4%). Forbes
Forbes
Forbes is an American publishing and media company. Its flagship publication, the Forbes magazine, is published biweekly. Its primary competitors in the national business magazine category are Fortune, which is also published biweekly, and Business Week...

magazine stated in its 2008 "America's Best- And Worst-Educated Cities" report: "The D.C. area is less than half the size of L.A., but both cities have around 100,000 Ph.D.'s."

In recent years the Washington Metropolitan Area has overtaken the San Francisco Bay Area
San Francisco Bay Area
The San Francisco Bay Area, commonly known as the Bay Area, is a populated region that surrounds the San Francisco and San Pablo estuaries in Northern California. The region encompasses metropolitan areas of San Francisco, Oakland, and San Jose, along with smaller urban and rural areas...

 as the highest-income metropolitan area in the nation. The median household income
Median household income
The median household income is commonly used to generate data about geographic areas and divides households into two equal segments with the first half of households earning less than the median household income and the other half earning more...

 of the region is US$72,800. The two highest median household income counties
Highest-income counties in the United States
There are 3,141 counties in the United States. The source of the data is the U.S. Census Bureau and the data is current as of the indicated year. Independent cities are considered county-equivalent by the Census Bureau.-2011:...

 in the nation – Loudoun
Loudoun County, Virginia
Loudoun County is a county located in the Commonwealth of Virginia, and is part of the Washington Metropolitan Area. As of the 2010 U.S. Census, the county is estimated to be home to 312,311 people, an 84 percent increase over the 2000 figure of 169,599. That increase makes the county the fourth...

 and Fairfax County, Virginia
Fairfax County, Virginia
Fairfax County is a county in Virginia, in the United States. Per the 2010 Census, the population of the county is 1,081,726, making it the most populous jurisdiction in the Commonwealth of Virginia, with 13.5% of Virginia's population...

 – are components of the MSA (and #3 is Howard County
Howard County
Howard County is the name of seven counties in the United States of America:* Howard County, Arkansas, named for James H. Howard, Arkansas state senator* Howard County, Indiana, named for Tilghman Ashurst Howard, U.S. Representative from Indiana...

, officially in Baltimore
Baltimore Metropolitan Area
The Baltimore-Towson Metropolitan Statistical Area, also known as Central Maryland, is a Metropolitan Statistical Area in Maryland as defined by the United States Office of Management and Budget...

's sphere but strongly connected with Washington's); measured in this way, Alexandria
Alexandria, Virginia
Alexandria is an independent city in the Commonwealth of Virginia. As of 2009, the city had a total population of 139,966. Located along the Western bank of the Potomac River, Alexandria is approximately six miles south of downtown Washington, D.C.Like the rest of northern Virginia, as well as...

 ranks 10th among municipalities in the region - 11th if Howard is included - and 23rd in the entire United States. 12.2% of Northern Virginia's 881,136 households, 8.5% of suburban Maryland's 799,300 households, and 8.2% of Washington's 249,805 households have an annual income in excess of $200,000, compared to 3.7% nationally.

Economy

The various agencies of the Federal Government employ over 140,000 professionals in the Washington D.C. area. A sizable number in the Washington D.C. area work for defense and civilian contracting companies that conduct business directly with the Federal Government (many of these firms are referred to as 'Beltway Bandits' under the local vernacular). As a result, the Federal Government provides the underlying basis of the economy in the region. However, the Washington D.C. area is increasingly home to a diverse segment of businesses not directly related to the Federal Government.

The Washington, D.C. area has the largest science and engineering work force of any metropolitan area in the nation in 2006 according to the Greater Washington Initiative at 324,530, ahead of the combined San Francisco Bay Area
San Francisco Bay Area
The San Francisco Bay Area, commonly known as the Bay Area, is a populated region that surrounds the San Francisco and San Pablo estuaries in Northern California. The region encompasses metropolitan areas of San Francisco, Oakland, and San Jose, along with smaller urban and rural areas...

 work force of 214,500, and Chicago metropolitan area at 203,090, citing data from U.S. Census Bureau, the Bureau of Labor Statistics, Claritas Inc., and other sources.

The Washington, D.C. area was ranked as the second best High-Tech Center in a statistical analysis of the top 100 Metropolitan areas in the United States by American City Business Journals in May 2009, behind the Silicon Valley
Silicon Valley
Silicon Valley is a term which refers to the southern part of the San Francisco Bay Area in Northern California in the United States. The region is home to many of the world's largest technology corporations...

 and ahead of the Boston metropolitan area. Fueling the metropolitan area's ranking was the reported 241,264 tech jobs in the region, a total eclipsed only by New York
New York metropolitan area
The New York metropolitan area, also known as Greater New York, or the Tri-State area, is the region that composes of New York City and the surrounding region...

, Los Angeles
Los Angeles Metropolitan Area
The Los Angeles metropolitan area, also known as Metropolitan Los Angeles or the Southland, is the 13th largest metropolitan area in the world and the second-largest metropolitan area in the United States....

, and the combined San Jose-San Francisco-Oakland regions, as well as the highest master's or doctoral degree attainment among the 100 ranked metropolitan areas.

The Washington D.C. Area is home to hundreds of major research universities, think tanks, and non-profit organizations. Additionally, Washington, D.C. is a top tourism destination as flocks of Americans and foreigners from around the world visit the museums and monuments of the Capital city year round with the peak season being during the Spring and Summer months of April through August. Moreover, the Washington D.C. area attracts tens of major conferences and conventions each year which also contribute greatly to the region's economy.

Biotechnology

Not limited to its proximity to the National Institutes of Health
National Institutes of Health
The National Institutes of Health are an agency of the United States Department of Health and Human Services and are the primary agency of the United States government responsible for biomedical and health-related research. Its science and engineering counterpart is the National Science Foundation...

, Maryland's Washington suburbs are a major center for biotechnology
Biotechnology
Biotechnology is a field of applied biology that involves the use of living organisms and bioprocesses in engineering, technology, medicine and other fields requiring bioproducts. Biotechnology also utilizes these products for manufacturing purpose...

. Prominent local biotech companies include MedImmune
MedImmune
MedImmune, LLC, headquartered in Gaithersburg, Maryland, became a wholly owned subsidiary of AstraZeneca in 2007. Since being acquired, MedImmune has remained a Maryland-based biotechnology development enterprise...

, The Institute for Genomic Research
The Institute for Genomic Research
The Institute for Genomic Research was a non-profit genomics research institute founded in 1992 by Craig Venter in Rockville, Maryland, United States. It is now a part of the J. Craig Venter Institute.-History:...

, Human Genome Sciences
Human Genome Sciences
Human Genome Sciences is a biopharmaceutical corporation founded in 1992. It uses the human DNA sequence to develop protein and antibody drugs. As of 2008, it has drugs under development to treat such diseases as hepatitis C, systemic lupus erythmatosis, anthrax disease, cancer, rheumatoid...

, and the Howard Hughes Medical Institute
Howard Hughes Medical Institute
Howard Hughes Medical Institute is a United States non-profit medical research organization based in Chevy Chase, Maryland. It was founded by the American businessman Howard Hughes in 1953. It is one of the largest private funding organizations for biological and medical research in the United...

.

Defense contracting

Many defense contractors are based in the region to be close to the Pentagon
The Pentagon
The Pentagon is the headquarters of the United States Department of Defense, located in Arlington County, Virginia. As a symbol of the U.S. military, "the Pentagon" is often used metonymically to refer to the Department of Defense rather than the building itself.Designed by the American architect...

 in Arlington. Local defense contractors include Lockheed Martin
Lockheed Martin
Lockheed Martin is an American global aerospace, defense, security, and advanced technology company with worldwide interests. It was formed by the merger of Lockheed Corporation with Martin Marietta in March 1995. It is headquartered in Bethesda, Maryland, in the Washington Metropolitan Area....

, the largest, as well as Raytheon
Raytheon
Raytheon Company is a major American defense contractor and industrial corporation with core manufacturing concentrations in weapons and military and commercial electronics. It was previously involved in corporate and special-mission aircraft until early 2007...

, General Dynamics
General Dynamics
General Dynamics Corporation is a U.S. defense conglomerate formed by mergers and divestitures, and as of 2008 it is the fifth largest defense contractor in the world. Its headquarters are in West Falls Church , unincorporated Fairfax County, Virginia, in the Falls Church area.The company has...

, BAE Systems
BAE Systems
BAE Systems plc is a British multinational defence, security and aerospace company headquartered in London, United Kingdom, that has global interests, particularly in North America through its subsidiary BAE Systems Inc. BAE is among the world's largest military contractors; in 2009 it was the...

, Computer Sciences Corporation (CSC)
Computer Sciences Corporation
Computer Sciences Corporation is an American information technology and business services company headquartered in Falls Church, Virginia, USA...

, Science Applications International Corporation (SAIC)
Science Applications International Corporation
SAIC is a FORTUNE 500 scientific, engineering and technology applications company headquartered in the United States with numerous federal, state, and private sector clients...

, CACI
CACI
CACI International Inc is a professional services and information technology company headquartered in Arlington, Virginia. CACI is a member of the Fortune 1000 Largest Companies and the Russell 2000 index. The company has approximately 13,700 employees in over 120 offices in the U.S. and...

, and Orbital Sciences Corporation
Orbital Sciences Corporation
Orbital Sciences Corporation is an American company which specializes in the manufacturing and launch of satellites. Its Launch Systems Group is heavily involved with missile defense launch systems...

. Northrup Grumman is to move its headquarters to the region by the summer of 2011.

Notable company headquarters in the region

List of companies headquartered in the Washington Metropolitan Area with revenues in excess of $5 billion, including companies that are in the process of relocating to the area and excluding those that are leaving. Seven of the companies are located in Tysons Corner
Tysons Corner, Virginia
Tysons Corner is an unincorporated census-designated place in Fairfax County, Virginia, United States. Part of the Washington Metropolitan Area located in Northern Virginia, Tysons Corner lies between the community of McLean and the town of Vienna along the Capital Beltway . The population was...

 but use McLean
McLean, Virginia
McLean is an unincorporated community and census-designated place in Fairfax County in Northern Virginia. The community had a total population of 48,115 as of the 2010 census....

 addresses. Many large firms are based in Montgomery County
Montgomery County, Maryland
Montgomery County is a county in the U.S. state of Maryland, situated just to the north of Washington, D.C., and southwest of the city of Baltimore. It is one of the most affluent counties in the United States, and has the highest percentage of residents over 25 years of age who hold post-graduate...

, including Discovery Communications
Discovery Communications
Discovery Communications, Inc. is an American global media and entertainment company. The company started as a single channel in 1985, The Discovery Channel. Today, DCI has global operations offering 28 network entertainment brands on more than 100 channels in more than 180 countries in 39...

, Coventry Health Care
Coventry Health Care
Coventry Health Care, Inc. is a diversified national insurer in the United States.Based in Bethesda, Maryland, Coventry operates health plans, insurance companies, network rental and workers’ compensation services companies...

, Lockheed Martin
Lockheed Martin
Lockheed Martin is an American global aerospace, defense, security, and advanced technology company with worldwide interests. It was formed by the merger of Lockheed Corporation with Martin Marietta in March 1995. It is headquartered in Bethesda, Maryland, in the Washington Metropolitan Area....

, Marriott International
Marriott International
Marriott International, Inc. is a worldwide operator and franchisor of a broad portfolio of hotels and related lodging facilities. Founded by J. Willard Marriott, the company is now led by son J.W. Marriott, Jr...

, Host Hotels & Resorts
Host Hotels & Resorts
Host Hotels & Resorts is a real estate investment trust and the owner of lodging real estate based in Bethesda, Maryland.-History:Host Hotels & Resorts was formed in 1992 when the Marriott Corporation split into two separate entities, creating Marriott International and Host Marriott...

, Travel Channel
Travel Channel
The Travel Channel is a satellite and cable television channel that is headquartered in Chevy Chase, Maryland, US. It features documentaries and how-to shows related to travel and leisure around the United States and throughout the world. Programming has included shows in African animal safaris,...

, Ritz-Carlton
Ritz-Carlton
The Ritz-Carlton is a brand of luxury hotels and resorts with 75 properties located in major cities and resorts in 24 countries worldwide...

, Robert Louis Johnson Companies (RLJ Cos), Choice Hotels
Choice Hotels
Choice Hotels International is a hospitality holding corporation which is affiliated with several hotel brands and is based in Silver Spring, Maryland...

, MedImmune
MedImmune
MedImmune, LLC, headquartered in Gaithersburg, Maryland, became a wholly owned subsidiary of AstraZeneca in 2007. Since being acquired, MedImmune has remained a Maryland-based biotechnology development enterprise...

, TV One, BAE Systems Inc, Hughes Network Systems, and GEICO
GEICO
The Government Employees Insurance Company is an auto insurance company. It is a wholly owned subsidiary of Berkshire Hathaway that as of 2007 provided coverage for more than 10 million motor vehicles owned by more than 9 million policy holders. GEICO writes private passenger automobile insurance...

.
Company Region Revenue (billions)
AES Corporation
AES Corporation
AES Corporation is a Fortune 500 company that generates and distributes electrical power. The company was founded on January 28, 1981, as Applied Energy Services by Roger Sant from the US Federal Energy Administration and Dennis Bakke from the Office of Management and Budget. AES Corporation is...

Northern Virginia
Northern Virginia
Northern Virginia consists of several counties and independent cities in the Commonwealth of Virginia, in a widespread region generally radiating southerly and westward from Washington, D.C...

 (Arlington)
$17.1
Booz Allen Hamilton
Booz Allen Hamilton
Booz Allen Hamilton Inc. , or more commonly Booz Allen, is an American public consulting firm headquartered in McLean, Fairfax County, Virginia, with 80 other offices throughout the United States. Ralph Shrader is its Chairman and Chief Executive Officer. The firm was founded by Edwin Booz in...

Northern Virginia
Northern Virginia
Northern Virginia consists of several counties and independent cities in the Commonwealth of Virginia, in a widespread region generally radiating southerly and westward from Washington, D.C...

 (McLean
McLean, Virginia
McLean is an unincorporated community and census-designated place in Fairfax County in Northern Virginia. The community had a total population of 48,115 as of the 2010 census....

)
$5.1
Coventry Health Care
Coventry Health Care
Coventry Health Care, Inc. is a diversified national insurer in the United States.Based in Bethesda, Maryland, Coventry operates health plans, insurance companies, network rental and workers’ compensation services companies...

Suburban Maryland
Maryland
Maryland is a U.S. state located in the Mid Atlantic region of the United States, bordering Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware to its east...

 (Bethesda
Bethesda, Maryland
Bethesda is a census designated place in southern Montgomery County, Maryland, United States, just northwest of Washington, D.C. It takes its name from a local church, the Bethesda Meeting House , which in turn took its name from Jerusalem's Pool of Bethesda...

)
$11.6
Capital One
Capital One
Capital One Financial Corp. is a U.S.-based bank holding company specializing in credit cards, home loans, auto loans, banking and savings products...

Northern Virginia
Northern Virginia
Northern Virginia consists of several counties and independent cities in the Commonwealth of Virginia, in a widespread region generally radiating southerly and westward from Washington, D.C...

 (McLean
McLean, Virginia
McLean is an unincorporated community and census-designated place in Fairfax County in Northern Virginia. The community had a total population of 48,115 as of the 2010 census....

)
$19.0
Computer Sciences Corporation
Computer Sciences Corporation
Computer Sciences Corporation is an American information technology and business services company headquartered in Falls Church, Virginia, USA...

Northern Virginia
Northern Virginia
Northern Virginia consists of several counties and independent cities in the Commonwealth of Virginia, in a widespread region generally radiating southerly and westward from Washington, D.C...

 (Falls Church
Falls Church, Virginia
The City of Falls Church is an independent city in Virginia, United States, in the Washington Metropolitan Area. The city population was 12,332 in 2010, up from 10,377 in 2000. Taking its name from The Falls Church, an 18th-century Anglican parish, Falls Church gained township status within...

)
$16.1
Danaher Corporation
Danaher Corporation
The Danaher Corporation , is a large global company headquartered in Washington, D.C., United States. Its products are concentrated in the fields of design, manufacture, and marketing of industrial and consumer products....

District of Columbia
Washington, D.C.
Washington, D.C., formally the District of Columbia and commonly referred to as Washington, "the District", or simply D.C., is the capital of the United States. On July 16, 1790, the United States Congress approved the creation of a permanent national capital as permitted by the U.S. Constitution....

$13.2
Fannie Mae District of Columbia
Washington, D.C.
Washington, D.C., formally the District of Columbia and commonly referred to as Washington, "the District", or simply D.C., is the capital of the United States. On July 16, 1790, the United States Congress approved the creation of a permanent national capital as permitted by the U.S. Constitution....

$153.8
Freddie Mac Northern Virginia
Northern Virginia
Northern Virginia consists of several counties and independent cities in the Commonwealth of Virginia, in a widespread region generally radiating southerly and westward from Washington, D.C...

 (McLean
McLean, Virginia
McLean is an unincorporated community and census-designated place in Fairfax County in Northern Virginia. The community had a total population of 48,115 as of the 2010 census....

)
$98.4
Gannett Company
Gannett Company
Gannett Company, Inc. is a publicly-traded media holding company headquartered in Tysons Corner, Virginia, United States, near McLean. It is the largest U.S. newspaper publisher as measured by total daily circulation. Its assets include the national newspaper USA Today and the weekly USA Weekend...

Northern Virginia
Northern Virginia
Northern Virginia consists of several counties and independent cities in the Commonwealth of Virginia, in a widespread region generally radiating southerly and westward from Washington, D.C...

 (McLean
McLean, Virginia
McLean is an unincorporated community and census-designated place in Fairfax County in Northern Virginia. The community had a total population of 48,115 as of the 2010 census....

)
$5.6
General Dynamics
General Dynamics
General Dynamics Corporation is a U.S. defense conglomerate formed by mergers and divestitures, and as of 2008 it is the fifth largest defense contractor in the world. Its headquarters are in West Falls Church , unincorporated Fairfax County, Virginia, in the Falls Church area.The company has...

Northern Virginia
Northern Virginia
Northern Virginia consists of several counties and independent cities in the Commonwealth of Virginia, in a widespread region generally radiating southerly and westward from Washington, D.C...

 (Falls Church
Falls Church, Virginia
The City of Falls Church is an independent city in Virginia, United States, in the Washington Metropolitan Area. The city population was 12,332 in 2010, up from 10,377 in 2000. Taking its name from The Falls Church, an 18th-century Anglican parish, Falls Church gained township status within...

)
$32.5
Geico
GEICO
The Government Employees Insurance Company is an auto insurance company. It is a wholly owned subsidiary of Berkshire Hathaway that as of 2007 provided coverage for more than 10 million motor vehicles owned by more than 9 million policy holders. GEICO writes private passenger automobile insurance...

Suburban Maryland
Maryland
Maryland is a U.S. state located in the Mid Atlantic region of the United States, bordering Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware to its east...

 (Chevy Chase
Chevy Chase, Maryland
Chevy Chase is the name of both a town and an unincorporated census-designated place in Montgomery County, Maryland. In addition, a number of villages in the same area of Montgomery County include "Chevy Chase" in their names...

)
$9.2
Hilton Worldwide Northern Virginia
Northern Virginia
Northern Virginia consists of several counties and independent cities in the Commonwealth of Virginia, in a widespread region generally radiating southerly and westward from Washington, D.C...

 (McLean
McLean, Virginia
McLean is an unincorporated community and census-designated place in Fairfax County in Northern Virginia. The community had a total population of 48,115 as of the 2010 census....

)
$7.5
Lockheed Martin
Lockheed Martin
Lockheed Martin is an American global aerospace, defense, security, and advanced technology company with worldwide interests. It was formed by the merger of Lockheed Corporation with Martin Marietta in March 1995. It is headquartered in Bethesda, Maryland, in the Washington Metropolitan Area....

Suburban Maryland
Maryland
Maryland is a U.S. state located in the Mid Atlantic region of the United States, bordering Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware to its east...

 (Bethesda
Bethesda, Maryland
Bethesda is a census designated place in southern Montgomery County, Maryland, United States, just northwest of Washington, D.C. It takes its name from a local church, the Bethesda Meeting House , which in turn took its name from Jerusalem's Pool of Bethesda...

)
$46.9
Marriott International
Marriott International
Marriott International, Inc. is a worldwide operator and franchisor of a broad portfolio of hotels and related lodging facilities. Founded by J. Willard Marriott, the company is now led by son J.W. Marriott, Jr...

Suburban Maryland
Maryland
Maryland is a U.S. state located in the Mid Atlantic region of the United States, bordering Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware to its east...

 (Bethesda
Bethesda, Maryland
Bethesda is a census designated place in southern Montgomery County, Maryland, United States, just northwest of Washington, D.C. It takes its name from a local church, the Bethesda Meeting House , which in turn took its name from Jerusalem's Pool of Bethesda...

)
$11.7
Mars, Incorporated
Mars, Incorporated
Mars, Incorporated is a worldwide manufacturer of confectionery, pet food, and other food products with US$30 billion in annual sales in 2010, and is ranked as the 5th largest privately held company in the United States by Forbes. Headquartered in McLean, unincorporated Fairfax County, Virginia,...

Northern Virginia
Northern Virginia
Northern Virginia consists of several counties and independent cities in the Commonwealth of Virginia, in a widespread region generally radiating southerly and westward from Washington, D.C...

 (McLean
McLean, Virginia
McLean is an unincorporated community and census-designated place in Fairfax County in Northern Virginia. The community had a total population of 48,115 as of the 2010 census....

)
$28.0
Northrop Grumman
Northrop Grumman
Northrop Grumman Corporation is an American global aerospace and defense technology company formed by the 1994 purchase of Grumman by Northrop. The company was the fourth-largest defense contractor in the world as of 2010, and the largest builder of naval vessels. Northrop Grumman employs over...

Northern Virginia
Northern Virginia
Northern Virginia consists of several counties and independent cities in the Commonwealth of Virginia, in a widespread region generally radiating southerly and westward from Washington, D.C...

 (Falls Church
Falls Church, Virginia
The City of Falls Church is an independent city in Virginia, United States, in the Washington Metropolitan Area. The city population was 12,332 in 2010, up from 10,377 in 2000. Taking its name from The Falls Church, an 18th-century Anglican parish, Falls Church gained township status within...

)
$34.8
NII Holdings
NII Holdings
NII Holdings Inc. , a publicly held company based in Reston, Va., provides mobile communications for business customers in Latin America. NII, which operates under the Nextel brand, has operations in Argentina, Brazil, Chile, Mexico and Peru and offers fully integrated wireless communications...

Northern Virginia
Northern Virginia
Northern Virginia consists of several counties and independent cities in the Commonwealth of Virginia, in a widespread region generally radiating southerly and westward from Washington, D.C...

 (Reston
Reston, Virginia
Reston is a census-designated place in Fairfax County, Virginia, United States, within the Washington, D.C. metropolitan area. The population was 58,404, at the 2010 Census and 56,407 at the 2000 census...

)
$5.6
Pepco Holdings
Pepco Holdings
Pepco Holdings, Inc. is a holding company incorporated in February of 2001 for the purpose of effecting the acquisition of Conectiv Power Delivery by Potomac Electric Power Company . The acquisition was completed on August 1, 2002 at which time Pepco and Conectiv became wholly owned subsidiaries...

District of Columbia
Washington, D.C.
Washington, D.C., formally the District of Columbia and commonly referred to as Washington, "the District", or simply D.C., is the capital of the United States. On July 16, 1790, the United States Congress approved the creation of a permanent national capital as permitted by the U.S. Constitution....

$7.0
SAIC Northern Virginia
Northern Virginia
Northern Virginia consists of several counties and independent cities in the Commonwealth of Virginia, in a widespread region generally radiating southerly and westward from Washington, D.C...

 (McLean
McLean, Virginia
McLean is an unincorporated community and census-designated place in Fairfax County in Northern Virginia. The community had a total population of 48,115 as of the 2010 census....

)
$11.1
(Total) District of Columbia
Washington, D.C.
Washington, D.C., formally the District of Columbia and commonly referred to as Washington, "the District", or simply D.C., is the capital of the United States. On July 16, 1790, the United States Congress approved the creation of a permanent national capital as permitted by the U.S. Constitution....

$174.0
(Total) Suburban Maryland
Maryland
Maryland is a U.S. state located in the Mid Atlantic region of the United States, bordering Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware to its east...

$79.4
(Total) Northern Virginia
Northern Virginia
Northern Virginia consists of several counties and independent cities in the Commonwealth of Virginia, in a widespread region generally radiating southerly and westward from Washington, D.C...

$280.8


Transportation

Major airports

  • Washington Dulles International Airport
    Washington Dulles International Airport
    Washington Dulles International Airport is a public airport in Dulles, Virginia, 26 miles west of downtown Washington, D.C. The airport serves the Baltimore-Washington-Northern Virginia metropolitan area centered on the District of Columbia. It is named after John Foster Dulles, Secretary of...

     (IAD), located in Dulles, Virginia
    Dulles, Virginia
    Dulles, Virginia is an unincorporated area located in Loudoun County, Virginia, part of the Washington Metropolitan Area. The headquarters of Orbital Sciences Corporation, GeoEye, and ODIN technologies and the former headquarters of MCI Inc...

     – the busiest in the region
  • Ronald Reagan Washington National Airport
    Ronald Reagan Washington National Airport
    Ronald Reagan Washington National Airport is a public airport located south of downtown Washington, D.C., in Arlington County, Virginia. It is the commercial airport nearest to Washington, D.C. For many decades, it was called Washington National Airport, but this airport was renamed in 1998 to...

     (DCA), located in Arlington County, Virginia
    Arlington County, Virginia
    Arlington County is a county in the Commonwealth of Virginia. The land that became Arlington was originally donated by Virginia to the United States government to form part of the new federal capital district. On February 27, 1801, the United States Congress organized the area as a subdivision of...

     – the closest to Washington
  • Baltimore-Washington International Thurgood Marshall Airport
    Baltimore-Washington International Thurgood Marshall Airport
    Baltimore/Washington International Thurgood Marshall Airport is an international airport serving the Baltimore-Washington Metropolitan Area in the United States. It is commonly called BWI, BWI Airport or BWI Marshall, BWI being an initialism for "Baltimore/Washington International" and the...

     (BWI), located in Linthicum, Maryland
    Linthicum, Maryland
    Linthicum is a census-designated place and an unincorporated community in Anne Arundel County, Maryland, United States. The population was 7,539 at the 2000 census. It is the approximate location of Baltimore-Washington International Thurgood Marshall Airport...

     – in the Baltimore Metropolitan Area
    Baltimore Metropolitan Area
    The Baltimore-Towson Metropolitan Statistical Area, also known as Central Maryland, is a Metropolitan Statistical Area in Maryland as defined by the United States Office of Management and Budget...


Rail transit systems

  • Washington Metro
    Washington Metro
    The Washington Metro, commonly called Metro, and unofficially Metrorail, is the rapid transit system in Washington, D.C., United States, and its surrounding suburbs. It is administered by the Washington Metropolitan Area Transit Authority , which also operates Metrobus service under the Metro name...

     – DC, MD, VA (Rapid transit
    Rapid transit
    A rapid transit, underground, subway, elevated railway, metro or metropolitan railway system is an electric passenger railway in an urban area with a high capacity and frequency, and grade separation from other traffic. Rapid transit systems are typically located either in underground tunnels or on...

    )
  • MARC Train
    MARC Train
    MARC , known prior to 1984 as Maryland Rail Commuter Service, is a regional rail system comprising three lines in the Baltimore-Washington Metropolitan Area. MARC is administered by the Maryland Transit Administration , a Maryland Department of Transportation agency, and is operated under contract...

     – DC, MD, WV (Commuter rail)
  • Virginia Railway Express
    Virginia Railway Express
    The Virginia Railway Express is a regional/ commuter rail service that connects the Northern Virginia suburbs to Union Station in Washington, D.C., via two lines: the Fredericksburg Line from Fredericksburg, Virginia, and the Manassas Line from Broad Run/Airport station in Bristow,...

     – DC, VA (Commuter rail)
  • Amtrak
    Amtrak
    The National Railroad Passenger Corporation, doing business as Amtrak , is a government-owned corporation that was organized on May 1, 1971, to provide intercity passenger train service in the United States. "Amtrak" is a portmanteau of the words "America" and "track". It is headquartered at Union...

     – DC, MD, VA, WV (Commuter rail, Inter-city rail
    Inter-city rail
    Inter-city rail services are express passenger train services that cover longer distances than commuter or regional trains.There is no precise definition of inter-city rail. Its meaning may vary from country to country...

    )

Bus transit systems

  • DC Circulator
    DC Circulator
    The DC Circulator is a bus system in Washington, D.C. The system is a public-private partnership between the District of Columbia Department of Transportation, the Washington Metropolitan Area Transit Authority, and DC Surface Transit, Inc., operated by First Transit.The concept of a separate...

     – Washington, D.C.
    Washington, D.C.
    Washington, D.C., formally the District of Columbia and commonly referred to as Washington, "the District", or simply D.C., is the capital of the United States. On July 16, 1790, the United States Congress approved the creation of a permanent national capital as permitted by the U.S. Constitution....

  • Metrobus
    Metrobus (Washington, D.C.)
    Metrobus is a bus service operated by the Washington Metropolitan Area Transit Authority . Its fleet consists of 1,480 buses covering an area of in Washington, D.C., Maryland, and Virginia. There are over 300 bus routes serving 12,216 stops, including 2,398 bus shelters. In fiscal year 2009,...

     – Washington Metropolitan Area
  • Ride On
    Ride On (bus)
    Ride On is the primary public transportation system in Montgomery County, Maryland. Ride On serves Montgomery County as well as the community of Langley Park in Prince George's County...

     - Montgomery County, Maryland
    Montgomery County, Maryland
    Montgomery County is a county in the U.S. state of Maryland, situated just to the north of Washington, D.C., and southwest of the city of Baltimore. It is one of the most affluent counties in the United States, and has the highest percentage of residents over 25 years of age who hold post-graduate...

  • TheBus - Prince George's County, Maryland
    Prince George's County, Maryland
    Prince George's County is a county located in the U.S. state of Maryland, immediately north, east, and south of Washington, DC. As of 2010, it has a population of 863,420 and is the wealthiest African-American majority county in the nation....

  • ART
    Arlington Transit
    Arlington Transit is a bus transit company that operates in Arlington County, Virginia. It includes part of the Pike Ride service along Columbia Pike, shared with WMATA. Most of its services are designed to connect city neighborhoods with nearby Metro stations...

     - Arlington County, Virginia
    Arlington County, Virginia
    Arlington County is a county in the Commonwealth of Virginia. The land that became Arlington was originally donated by Virginia to the United States government to form part of the new federal capital district. On February 27, 1801, the United States Congress organized the area as a subdivision of...

  • DASH - Alexandria, Virginia
    Alexandria, Virginia
    Alexandria is an independent city in the Commonwealth of Virginia. As of 2009, the city had a total population of 139,966. Located along the Western bank of the Potomac River, Alexandria is approximately six miles south of downtown Washington, D.C.Like the rest of northern Virginia, as well as...

  • Fairfax Connector
    Fairfax Connector
    Fairfax Connector is a public bus service provided by Fairfax County, Virginia, and operated under contract by MV Transportation. The first buses rolled out in September 1985 as a lower-cost alternative to the Metrobus service of the regional Washington Metropolitan Area Transit Authority...

     - Fairfax County, Virginia
    Fairfax County, Virginia
    Fairfax County is a county in Virginia, in the United States. Per the 2010 Census, the population of the county is 1,081,726, making it the most populous jurisdiction in the Commonwealth of Virginia, with 13.5% of Virginia's population...

  • CUE Bus - Fairfax, Virginia
    Fairfax, Virginia
    The City of Fairfax is an independent city forming an enclave within the confines of Fairfax County, in the Commonwealth of Virginia in the United States. Although politically independent of the surrounding county, the City is nevertheless the county seat....

  • PRTC
    Potomac and Rappahannock Transportation Commission
    Potomac and Rappahannock Transportation Commission is the public transportation system in Prince William County, Virginia, plus two adjacent independent cities, Manassas and Manassas Park, that together are surrounded by the county. Services provided by PRTC include OmniRide, OmniLink, and...

     - Prince William County
    Prince William County, Virginia
    -National protected areas:* Featherstone National Wildlife Refuge* Manassas National Battlefield Park* Occoquan Bay National Wildlife Refuge* Prince William Forest Park-Government and politics:...

    , Manassas
    Manassas, Virginia
    The City of Manassas is an independent city surrounded by Prince William County and the independent city of Manassas Park in the Commonwealth of Virginia in the United States. Its population was 37,821 as of 2010. Manassas also surrounds the county seat for Prince William County but that county...

     and Manassas Park

Health

The Washington DC metro area has held the top spot in the American College of Sports Medicine
American College of Sports Medicine
The American College of Sports Medicine is the largest sports medicine and exercise science organization in the world. More than 40,000 international, national and regional members and certified professionals are dedicated to advancing and integrating scientific research to provide educational and...

's annual American Fitness Index
ACSM American Fitness Index
The ACSM American Fitness Index Program is an initiative of the American College of Sports Medicine that aims to quantitatively measure the overall health and fitness level of American metropolitan areas. The measure is a composite of indicators for personal health, availability of health care...

 ranking of the United States' 50 most populous metropolitan areas for two years running. The report cites, among other things, the high average fitness level and healthy eating habits of residents, the widespread availability of health care and facilities such as swimming pools, tennis courts, and parks, low rates of obesity and tobacco use relative to the national average, and the high median household income as contributors to the city's community health.

Sister cities

City Country Year
Washington, D.C.
Washington, D.C.
Washington, D.C., formally the District of Columbia and commonly referred to as Washington, "the District", or simply D.C., is the capital of the United States. On July 16, 1790, the United States Congress approved the creation of a permanent national capital as permitted by the U.S. Constitution....

http://os.dc.gov/os/cwp/view,a,1206,q,522336.asp
Bangkok
Bangkok
Bangkok is the capital and largest urban area city in Thailand. It is known in Thai as Krung Thep Maha Nakhon or simply Krung Thep , meaning "city of angels." The full name of Bangkok is Krung Thep Mahanakhon Amon Rattanakosin Mahintharayutthaya Mahadilok Phop Noppharat Ratchathani Burirom...

  Thailand
Thailand
Thailand , officially the Kingdom of Thailand , formerly known as Siam , is a country located at the centre of the Indochina peninsula and Southeast Asia. It is bordered to the north by Burma and Laos, to the east by Laos and Cambodia, to the south by the Gulf of Thailand and Malaysia, and to the...

1962, renewed 2002
Dakar
Dakar
Dakar is the capital city and largest city of Senegal. It is located on the Cap-Vert Peninsula on the Atlantic coast and is the westernmost city on the African mainland...

  Senegal
Senegal
Senegal , officially the Republic of Senegal , is a country in western Africa. It owes its name to the Sénégal River that borders it to the east and north...

1980, renewed 2006
Beijing
Beijing
Beijing , also known as Peking , is the capital of the People's Republic of China and one of the most populous cities in the world, with a population of 19,612,368 as of 2010. The city is the country's political, cultural, and educational center, and home to the headquarters for most of China's...

  China
People's Republic of China
China , officially the People's Republic of China , is the most populous country in the world, with over 1.3 billion citizens. Located in East Asia, the country covers approximately 9.6 million square kilometres...

1984, renewed 2004
Brussels
Brussels
Brussels , officially the Brussels Region or Brussels-Capital Region , is the capital of Belgium and the de facto capital of the European Union...

  Belgium
Belgium
Belgium , officially the Kingdom of Belgium, is a federal state in Western Europe. It is a founding member of the European Union and hosts the EU's headquarters, and those of several other major international organisations such as NATO.Belgium is also a member of, or affiliated to, many...

1985, renewed 2002
Athens
Athens
Athens , is the capital and largest city of Greece. Athens dominates the Attica region and is one of the world's oldest cities, as its recorded history spans around 3,400 years. Classical Athens was a powerful city-state...

  Greece
Greece
Greece , officially the Hellenic Republic , and historically Hellas or the Republic of Greece in English, is a country in southeastern Europe....

2000
Paris
Paris
Paris is the capital and largest city in France, situated on the river Seine, in northern France, at the heart of the Île-de-France region...

Paris
Paris
Paris is the capital and largest city in France, situated on the river Seine, in northern France, at the heart of the Île-de-France region...

 is a "Partner City" due to the one Sister City policy of that commune
Communes of France
The commune is the lowest level of administrative division in the French Republic. French communes are roughly equivalent to incorporated municipalities or villages in the United States or Gemeinden in Germany...

.http://www.paris.fr/portail/english/Portal.lut?page_id=8139&document_type_id=5&document_id=29903&portlet_id=18784
  France
France
The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

2000, renewed 2005
Pretoria   South Africa
South Africa
The Republic of South Africa is a country in southern Africa. Located at the southern tip of Africa, it is divided into nine provinces, with of coastline on the Atlantic and Indian oceans...

2002, renewed 2008
Seoul
Seoul
Seoul , officially the Seoul Special City, is the capital and largest metropolis of South Korea. A megacity with a population of over 10 million, it is the largest city proper in the OECD developed world...

  South Korea
South Korea
The Republic of Korea , , is a sovereign state in East Asia, located on the southern portion of the Korean Peninsula. It is neighbored by the People's Republic of China to the west, Japan to the east, North Korea to the north, and the East China Sea and Republic of China to the south...

2006
Accra
Accra
Accra is the capital and largest city of Ghana, with an urban population of 1,658,937 according to the 2000 census. Accra is also the capital of the Greater Accra Region and of the Accra Metropolitan District, with which it is coterminous...

  Ghana
Ghana
Ghana , officially the Republic of Ghana, is a country located in West Africa. It is bordered by Côte d'Ivoire to the west, Burkina Faso to the north, Togo to the east, and the Gulf of Guinea to the south...

2006
Sunderland   United Kingdom
United Kingdom
The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

2006
Alexandria, Virginia
Alexandria, Virginia
Alexandria is an independent city in the Commonwealth of Virginia. As of 2009, the city had a total population of 139,966. Located along the Western bank of the Potomac River, Alexandria is approximately six miles south of downtown Washington, D.C.Like the rest of northern Virginia, as well as...

Gyumri
Gyumri
Gyumri is the capital and largest city of the Shirak Province in northwest Armenia. It is located about 120 km from the capital Yerevan, and, with a population of 168,918 , is the second-largest city in Armenia.The name of the city has been changed many times in history...

  Armenia
Armenia
Armenia , officially the Republic of Armenia , is a landlocked mountainous country in the Caucasus region of Eurasia...

Helsingborg
Helsingborg
Helsingborg is a city and the seat of Helsingborg Municipality, Skåne County, Sweden with 97,122 inhabitants in 2010. Helsingborg is the centre of an area in the Øresund region of about 320,000 inhabitants in north-west Scania, and is Sweden's closest point to Denmark, with the Danish city...

  Sweden
Sweden
Sweden , officially the Kingdom of Sweden , is a Nordic country on the Scandinavian Peninsula in Northern Europe. Sweden borders with Norway and Finland and is connected to Denmark by a bridge-tunnel across the Öresund....

Dundee
Dundee
Dundee is the fourth-largest city in Scotland and the 39th most populous settlement in the United Kingdom. It lies within the eastern central Lowlands on the north bank of the Firth of Tay, which feeds into the North Sea...

http://oha.alexandriava.gov/oha-main/oha_tobacco_exhibit.html
  United Kingdom
United Kingdom
The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

Caen
Caen
Caen is a commune in northwestern France. It is the prefecture of the Calvados department and the capital of the Basse-Normandie region. It is located inland from the English Channel....

  France
France
The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

Arlington County, Virginia
Arlington County, Virginia
Arlington County is a county in the Commonwealth of Virginia. The land that became Arlington was originally donated by Virginia to the United States government to form part of the new federal capital district. On February 27, 1801, the United States Congress organized the area as a subdivision of...

Aachen
Aachen
Aachen has historically been a spa town in North Rhine-Westphalia, Germany. Aachen was a favoured residence of Charlemagne, and the place of coronation of the Kings of Germany. Geographically, Aachen is the westernmost town of Germany, located along its borders with Belgium and the Netherlands, ...

  Germany
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

Reims
Reims
Reims , a city in the Champagne-Ardenne region of France, lies east-northeast of Paris. Founded by the Gauls, it became a major city during the period of the Roman Empire....

  France
France
The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

San Miguel
San Miguel, El Salvador
San Miguel is the fourth most populous city in El Salvador after Santa Ana and Soyapango and the second most important after San Salvador. It is located 138 km east of the capital, San Salvador. It is also the capital of the department of San Miguel and a municipality...

  El Salvador
El Salvador
El Salvador or simply Salvador is the smallest and the most densely populated country in Central America. The country's capital city and largest city is San Salvador; Santa Ana and San Miguel are also important cultural and commercial centers in the country and in all of Central America...

Coyoacán
Coyoacán
Coyoacán refers to one of the sixteen boroughs of the Federal District of Mexico City as well as the former village which is now the borough’s “historic center.” The name comes from Nahuatl and most likely means “place of coyotes,” when the Aztecs named a pre-Hispanic village on the southern shore...

  Mexico
Mexico
The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...

Ivano-Frankivsk
Ivano-Frankivsk
Ivano-Frankivsk is a historic city located in the western Ukraine. It is the administrative centre of the Ivano-Frankivsk Oblast , and is designated as its own separate raion within the oblast, municipality....

Exploration phase
  Ukraine
Ukraine
Ukraine is a country in Eastern Europe. It has an area of 603,628 km², making it the second largest contiguous country on the European continent, after Russia...

Herndon, Virginia
Herndon, Virginia
Herndon is a town in Fairfax County, Virginia, in the Washington, D.C. metropolitan area of the United States. The population was 21,655 at the 2000 census, which makes it the largest of three towns in the county.-History:...

Runnymede
Runnymede (borough)
Runnymede is a local government district with borough status in the English county of Surrey. It is a very prosperous part of the London commuter belt, with some of the most expensive housing in the United Kingdom outside of central London, such as the Wentworth Estate.Runnymede is entirely...

Town twinhttp://www.runnymede.gov.uk/portal/binary/com.epicentric.contentmanagement.servlet.ContentDeliveryServlet/RBC%2520Portal/LGCL%2520Categories/Community%2520%2526%2520Living/Twinning/Twinning
  United Kingdom
United Kingdom
The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

Fairfax County, Virginia
Fairfax County, Virginia
Fairfax County is a county in Virginia, in the United States. Per the 2010 Census, the population of the county is 1,081,726, making it the most populous jurisdiction in the Commonwealth of Virginia, with 13.5% of Virginia's population...

Harbin
Harbin
Harbin ; Manchu language: , Harbin; Russian: Харби́н Kharbin ), is the capital and largest city of Heilongjiang Province in Northeast China, lying on the southern bank of the Songhua River...

Rejected by Washington due to not being a national capital.http://www.bizjournals.com/washington/blog/2010/06/fairfax_county_teams_up_with_china_city.html
  China
People's Republic of China
China , officially the People's Republic of China , is the most populous country in the world, with over 1.3 billion citizens. Located in East Asia, the country covers approximately 9.6 million square kilometres...

2010
Falls Church, Virginia
Falls Church, Virginia
The City of Falls Church is an independent city in Virginia, United States, in the Washington Metropolitan Area. The city population was 12,332 in 2010, up from 10,377 in 2000. Taking its name from The Falls Church, an 18th-century Anglican parish, Falls Church gained township status within...

Kokolopori   Congo
Democratic Republic of the Congo
The Democratic Republic of the Congo is a state located in Central Africa. It is the second largest country in Africa by area and the eleventh largest in the world...

District Heights, Maryland
District Heights, Maryland
District Heights is an incorporated city in. Prince George's County, Maryland, United States, located near Maryland Route 4. The population was 5,837 at the 2010 census...

Mbuji-Mayi
Mbuji-Mayi
Mbuji-Mayi serves as the capital of Kasai-Oriental Province in the south-central Democratic Republic of Congo. It is the third largest city in the country, following the capital Kinshasa and second largest city Lubumbashi but ahead of Kisangani and Kananga. The city is the DRC's third-largest,...

  Congo
Democratic Republic of the Congo
The Democratic Republic of the Congo is a state located in Central Africa. It is the second largest country in Africa by area and the eleventh largest in the world...

Frederick, Maryland
Frederick, Maryland
Frederick is a city in north-central Maryland. It is the county seat of Frederick County, the largest county by area in the state of Maryland. Frederick is an outlying community of the Washington-Arlington-Alexandria, DC-VA-MD-WV Metropolitan Statistical Area, which is part of a greater...

Aquiraz
Aquiraz
Aquiraz is the thirteenth largest city in the state of Ceará, located on the nation's northeast coast, a popular vacation destination.- History :...

  Brazil
Brazil
Brazil , officially the Federative Republic of Brazil , is the largest country in South America. It is the world's fifth largest country, both by geographical area and by population with over 192 million people...

Moerzheim  Germany
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

Schifferstadt
Schifferstadt
Schifferstadt is a town in the Rhein-Pfalz-Kreis, in Rhineland-Palatinate, Germany.It is situated approx. 12 km southwest of Ludwigshafen and 6 km northwest of Speyer.- History :...

  Germany
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

La Plata, Maryland
La Plata, Maryland
La Plata is a town in Charles County, Maryland, United States. The population was 6,551 at the 2000 census. It is the county seat of Charles County.-History:...

Jogeva County
Jõgeva County
Jõgeva County , or Jõgevamaa, is one of 15 counties of Estonia. It is situated in eastern part of the country and borders Ida-Viru County to the north-east, Lake Peipus to the east, Tartu County to the south, Viljandi County to the south-west, Järva County to the north-west and Lääne-Viru County to...

  Estonia
Estonia
Estonia , officially the Republic of Estonia , is a state in the Baltic region of Northern Europe. It is bordered to the north by the Gulf of Finland, to the west by the Baltic Sea, to the south by Latvia , and to the east by Lake Peipsi and the Russian Federation . Across the Baltic Sea lies...

Walldorf
Walldorf
Walldorf is a town in the Rhein-Neckar-Kreis of Baden-Württemberg in Germany.Walldorf is currently probably best known as the city that headquarters the world's third largest software company SAP, but it is also the birthplace of the millionaire John Jacob Astor, at the time of his death the...

  Germany
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

Rockville, Maryland
Rockville, Maryland
Rockville is the county seat of Montgomery County, Maryland, United States. It is a major incorporated city in the central part of Montgomery County and forms part of the Baltimore-Washington Metropolitan Area. The 2010 U.S...

Pinneberg   Germany
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...



See also


External links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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