Arapahoe County

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Arapahoe County, Colorado

5334 S Prince St
Littleton, CO 80166
Phone: (303) 795-4200
Fax: (303) 794-4625
www.co.arapahoe.co.us

In east-central CO, south of Denver; original county, organized Nov 1, 1861 (prior to statehood). Name Origin: For a tribe of Algonquian linguistic stock. Name is probably Pawnee tirapihu 'trader.' Also suggested, but not documented, 'blue-sky men' and 'cloud men.'

Area (sq mi):: 805.43 (land 803.14; water 2.29) Population per square mile: 658.80
Population 2005: 529,090 State rank: 3 Population change: 2000-20005 8.40%; 1990-2000 24.60% Population 2000: 487,967 (White 73.90%; Black or African American 7.70%; Hispanic or Latino 11.80%; Asian 3.90%; Other 8.50%). Foreign born: 11.00%. Median age: 34.50
Income 2000: per capita $28,147; median household $53,570; Population below poverty level: 5.80% Personal per capita income (2000-2003): $42,829-$45,013
Unemployment (2004): 5.50% Unemployment change (from 2000): 2.30% Median travel time to work: 26.10 minutes Working outside county of residence: 49.90%
Cities with population over 10,000:
  • Centennial (98,245)
  • Littleton County seat (40,456)
  • Englewood (32,432)
  • Greenwood Village (12,678)

  • See other counties in .