Arapahoe County, Colorado

Arapahoe County is an administrative unit ( county ) in the northeastern part of the U.S. state of Colorado, which projects on the west side in the metropolitan area of Denver and Aurora. The administrative headquarters ( County Seat) is Littleton.


In addition to the independent city of Denver Arapahoe borders the counties Adams (as well as Denver until 1902 or under the administration of Arapahoe ). , Washington, Lincoln, Elbert and Jefferson The district boundaries between Arapahoe, Denver and Jefferson went very irregular and intertwine around the Marston Lake in Littleton ( near Columbine High School ) such that in some quarters several times the district changes. Well within the limits of Denver, there are still road district that belong administratively to Arapahoe.

Demographic data

1910-1990 2000 2010

According to the census of 2000, there were 487 967 people in the county. There were 190 909 households and 125 809 families. The population density was 235 people per square kilometer. The racial the population was made ​​up of 79.93 percent White, 7.67 percent African American, 0.66 percent Native American, 3.95 percent Asian, 0.12 percent of residents from the Pacific Islander and 4.51 percent from other races groups; 3.16 percent were descended from two or more races. 11.81 percent of the population were Hispanic or Latino of any race.

Of the 190 909 households out of which 34.9 percent have children under the age of 18 living with them. 51.2 percent were married couples living together, 10.6 percent were single mothers. 34.1 percent were non-families. 27.0 percent of all households and 5.9 percent had someone living alone at the age of 65 years or older. The average household size was 2.53 and the average family size was 3.11.

Based on the county the population was spread from 26.7 percent population under 18 years, 8.6 percent between 18 and 24 years, 33.1 percent between 25 and 44 years, 23.0 percent between 45 and 64 years and 8.6 percent were 65 years old or older. The average age was 34 years. For every 100 females there were 97.1 males to 100 females age 18 and over, there were 94.2 males.

The median income for a household was $ 53,570, and the median income for a family was $ 63,875. Males have a median income of $ 41,601, women $ 31,612. The per capita income was $ 28,147. 5.8 percent of the population and 4.2 percent of families are below the poverty line. Among them were 7.0 percent of the population under the age of 18 and 5.1 percent of the population aged 65 and over.

Places in District

Largest city of Arapahoe has approximately 300,000 inhabitants Aurora, which, however, partly also falls within the County and Douglas Adams. The only other major city is Centennial with around 100,000 inhabitants. Places that do not have municipal law, but only defined for statistical purposes settlement areas ( census -designated place CDP = ) are are shown in italics.

  • Aurora
  • Bennett
  • Bow Mar
  • Byers
  • Centennial
  • Cherry Hills Village
  • Columbine Valley
  • Deer Trail
  • Englewood
  • Foxfield
  • Glendale
  • Greenwood Village
  • Littleton
  • Sheridan