Arapahoe County -- Colorado's First
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Contact Information
Arapahoe County Government
Administration Building
5334 S Prince Street
Littleton, CO   80166
303-795-4400
303-738-7915 TTY
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Welcome to Arapahoe County, Colorado – the state’s first county and one of the largest with a population of more than 527,000. Arapahoe County was named for the Arapaho Indians, who along with the Cheyenne Indians, occupied most of Colorado when it was only a territory.

Back then, Arapahoe County was much larger – stretching east to western Kansas. Denver was the original County seat until 1902 when the city split off and became a separate county. The City of Littleton became the new county seat and remains the county seat today. The County Administration Building is located at 5334 S. Prince Street in Littleton, Colorado.

Arapahoe County has 1,800 employees and a $333.2 million budget. Arapahoe County has one of the lowest mill levies in the Front Range.

   
Helpful Resources  
  2006 Annual Report
  2008 Budget in Brief
  Fact Sheet
  Arapahoe County Foundation, Inc.
  County Locations
  County Mill Levies
  Arapahoe County Video
  Arapahoe County History
  Demographics
  Maps
  Mission, Vision and Values
  Elected Officials Bios
  Organizational Chart