State Line Road is a major north–south street in the Kansas City Metropolitan Area

Kansas City Metropolitan Area

The Kansas City Metropolitan Area is a fifteen-county metropolitan area that is anchored by Kansas City, Missouri and is bisected by the border between the states of Missouri and Kansas. As of the 2010 Census, the metropolitan area has a population of 2,035,334. The metropolitan area is the...

 that runs along the Kansas

Kansas

Kansas is a US state located in the Midwestern United States. It is named after the Kansas River which flows through it, which in turn was named after the Kansa Native American tribe, which inhabited the area. The tribe's name is often said to mean "people of the wind" or "people of the south...

–Missouri

Missouri

Missouri is a US state located in the Midwestern United States, bordered by Iowa, Illinois, Kentucky, Tennessee, Arkansas, Oklahoma, Kansas and Nebraska. With a 2010 population of 5,988,927, Missouri is the 18th most populous state in the nation and the fifth most populous in the Midwest. It...

 border. It connects U.S. Highway 56 in the north with Route 150 in the south. Cities along the road include Kansas City, Missouri

Kansas City, Missouri

Kansas City, Missouri is the largest city in the U.S. state of Missouri and is the anchor city of the Kansas City Metropolitan Area, the second largest metropolitan area in Missouri. It encompasses in parts of Jackson, Clay, Cass, and Platte counties...

, Kansas City, Kansas

Kansas City, Kansas

Kansas City is the third-largest city in the state of Kansas and is the county seat of Wyandotte County. It is a suburb of Kansas City, Missouri, and is the third largest city in the Kansas City Metropolitan Area. The city is part of a consolidated city-county government known as the "Unified...

, and several smaller communities in Kansas such as Leawood

Leawood, Kansas

Leawood is a city in Johnson County, Kansas, United States. The city is a suburb of Kansas City, Missouri and is part of the Kansas City Metropolitan Area. As of the 2010 census, the city population was 31,867.-History:...

, Mission Hills

Mission Hills, Kansas

Mission Hills is a city in Johnson County, Kansas, United States. As of the 2010 census, the city population was 3,498. The city is a suburb of Kansas City, Missouri, which is adjacent to the east, across the aptly named State Line Road. Mission Hills was originally developed by noted Kansas...

, Prairie Village

Prairie Village, Kansas

Prairie Village is a city in Johnson County, Kansas, United States, and is a suburb of Kansas City, Missouri. As of the 2010 census, the city population was 21,447.- History :...

, and Westwood Hills

Westwood Hills, Kansas

Westwood Hills is a city in Johnson County, Kansas, United States. The population was 378 at the 2000 census.-Geography:Westwood Hills is located at...

.

For northern portions of the road, the Missouri–Kansas border bisects the roadway. Consequently for these portions of the road, northbound traffic is in Missouri while southbound traffic is in Kansas. For southern portions of the road, the entire road is in Missouri.

State Line Road is home to

• the home and freighting office of Alexander Majors
  Alexander Majors
  thumb|right|240px|Alexander MajorsAlexander Majors got his start in overland freight on the Santa Fe Trail in 1848. On his first trip, he set a new time record of 92 days for the 1564 mile round trip....
  
  , a building on the National Register of Historic Places
  National Register of Historic Places
  The National Register of Historic Places is the United States government's official list of districts, sites, buildings, structures, and objects deemed worthy of preservation...
  
   and located at 8145 State Line Road.
• several schools on the Missouri side, such as Barstow
  The Barstow School
  The Barstow School, founded in 1884 by Mary Louise Barstow, is a nonsectarian, coeducational, independent preparatory school in southern Kansas City, Missouri, USA.The Barstow School enrolls approximately 650 students from Preschool through Grade 12...
  
  , Pembroke Hill
  The Pembroke Hill School
  The Pembroke Hill School is a nonsectarian, coeducational, private preparatory school for about 1,200 students in preschool through 12th grade, separated into four sections: preschool-2nd grade , 3rd-5th grade , 6th-8th grade , and 9th-12th grade...
  
   and Rockhurst High School
  Rockhurst High School
  Rockhurst High School is a private, Roman Catholic, Jesuit, preparatory school for boys located in Kansas City, Missouri, USA, on the Missouri-Kansas border along State Line Road....
  
  
• Ward Parkway Center
  Ward Parkway Center
  Ward Parkway Center or Ward Parkway Mall is a shopping center located in Kansas City, Missouri on the Kansas/Missouri border line. The location surrounds the area from 85th Terrace to 89th Street on the North/South and State Line Road to Ward Parkway on the West/East. Once a two floor mall with a...
  
  at 8600 Ward Parkway

In 2001 Leawood promoted State Line Road as "The State Line Link"