Londonderry Township, Dauphin County, Pennsylvania
Encyclopedia
Londonderry Township is a township in Dauphin County
, Pennsylvania
, United States
. The population was 5,224 at the 2000 census.
The township includes the site of the 1979 Three Mile Island Nuclear Generating Station
accident
, which was the largest accident of its kind in the American nuclear power
generating industry.
, the township has a total area of 26.9 square miles (69.6 km²), of which, 22.8 square miles (59.0 km²) of it is land and 4.1 square miles (10.6 km²) of it (15.23%) is water.
of 2000, there were 5,224 people, 2,004 households, and 1,517 families residing in the township. The population density
was 229.4 people per square mile (88.6/km²). There were 2,095 housing units at an average density of 92.0/sq mi (35.5/km²). The racial makeup of the township was 97.74% White, 0.77% African American, 0.10% Native American, 0.25% Asian, 0.11% from other races
, and 1.03% from two or more races. Hispanic or Latino of any race were 0.67% of the population.
There were 2,004 households out of which 33.6% had children under the age of 18 living with them, 63.2% were married couples
living together, 7.9% had a female householder with no husband present, and 24.3% were non-families. 20.6% of all households were made up of individuals and 7.8% had someone living alone who was 65 years of age or older. The average household size was 2.60 and the average family size was 2.99.
In the township the population was spread out with 25.1% under the age of 18, 6.3% from 18 to 24, 30.9% from 25 to 44, 25.5% from 45 to 64, and 12.2% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 96.5 males. For every 100 females age 18 and over, there were 97.0 males.
The median income for a household in the township was $42,804, and the median income for a family was $52,650. Males had a median income of $38,750 versus $27,719 for females. The per capita income
for the township was $20,055. About 4.1% of families and 7.0% of the population were below the poverty line, including 8.2% of those under age 18 and 9.2% of those age 65 or over.
Dauphin County, Pennsylvania
Dauphin County is a county in the U.S. state of Pennsylvania and is one of the three counties comprising the Harrisburg–Carlisle Metropolitan Statistical Area. As of 2010 census, the population was 268,100. The county includes the city of Harrisburg, which has served as the state capital...
, Pennsylvania
Pennsylvania
The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...
, United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...
. The population was 5,224 at the 2000 census.
The township includes the site of the 1979 Three Mile Island Nuclear Generating Station
Three Mile Island Nuclear Generating Station
Three Mile Island Nuclear Generating Station is a civilian nuclear power plant located on Three Mile Island in the Susquehanna River, south of Harrisburg, Pennsylvania. It has two separate units, known as TMI-1 and TMI-2...
accident
Three Mile Island accident
The Three Mile Island accident was a core meltdown in Unit 2 of the Three Mile Island Nuclear Generating Station in Dauphin County, Pennsylvania near Harrisburg, United States in 1979....
, which was the largest accident of its kind in the American nuclear power
Nuclear power
Nuclear power is the use of sustained nuclear fission to generate heat and electricity. Nuclear power plants provide about 6% of the world's energy and 13–14% of the world's electricity, with the U.S., France, and Japan together accounting for about 50% of nuclear generated electricity...
generating industry.
Geography
According to the United States Census BureauUnited 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...
, the township has a total area of 26.9 square miles (69.6 km²), of which, 22.8 square miles (59.0 km²) of it is land and 4.1 square miles (10.6 km²) of it (15.23%) is water.
Demographics
As of the censusCensus
A census is the procedure of systematically acquiring and recording information about the members of a given population. It is a regularly occurring and official count of a particular population. The term is used mostly in connection with national population and housing censuses; other common...
of 2000, there were 5,224 people, 2,004 households, and 1,517 families residing in the township. The population density
Population density
Population density is a measurement of population per unit area or unit volume. It is frequently applied to living organisms, and particularly to humans...
was 229.4 people per square mile (88.6/km²). There were 2,095 housing units at an average density of 92.0/sq mi (35.5/km²). The racial makeup of the township was 97.74% White, 0.77% African American, 0.10% Native American, 0.25% Asian, 0.11% from other races
Race (United States Census)
Race and ethnicity in the United States Census, as defined by the Federal Office of Management and Budget and the United States Census Bureau, are self-identification data items in which residents choose the race or races with which they most closely identify, and indicate whether or not they are...
, and 1.03% from two or more races. Hispanic or Latino of any race were 0.67% of the population.
There were 2,004 households out of which 33.6% had children under the age of 18 living with them, 63.2% were married couples
Marriage
Marriage is a social union or legal contract between people that creates kinship. It is an institution in which interpersonal relationships, usually intimate and sexual, are acknowledged in a variety of ways, depending on the culture or subculture in which it is found...
living together, 7.9% had a female householder with no husband present, and 24.3% were non-families. 20.6% of all households were made up of individuals and 7.8% had someone living alone who was 65 years of age or older. The average household size was 2.60 and the average family size was 2.99.
In the township the population was spread out with 25.1% under the age of 18, 6.3% from 18 to 24, 30.9% from 25 to 44, 25.5% from 45 to 64, and 12.2% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 96.5 males. For every 100 females age 18 and over, there were 97.0 males.
The median income for a household in the township was $42,804, and the median income for a family was $52,650. Males had a median income of $38,750 versus $27,719 for females. The per capita income
Per capita income
Per capita income or income per person is a measure of mean income within an economic aggregate, such as a country or city. It is calculated by taking a measure of all sources of income in the aggregate and dividing it by the total population...
for the township was $20,055. About 4.1% of families and 7.0% of the population were below the poverty line, including 8.2% of those under age 18 and 9.2% of those age 65 or over.