Arapahoe County is Colorado’s first county and the state’s third largest county with a population of 637,068. To help residents and visitors learn more about Arapahoe County we’ve listed some basic demographic information as well as links to a few outside sources for more information.

  • Housing units: 246,702 (2016 Census Bureau)
  • Households: 231,844 (2012-2016 Census Bureau)
  • Median Household Income: $66,288 (2016 Census Bureau)
  • Population: 637,068 (2016 Census Bureau)
  • Education: 92.3 percent High school graduate or higher, percent of persons age 25+
    40.7 percent Bachelor's Degree or higher, percent of persons age 25+ (2012-2016 Census Bureau)

The reports listed below provide more information about the County and several subareas within the County. The information in the reports comes from a variety of sources, including the US Census, American Community Survey, Colorado State Demography Office, Colorado Department of Labor and Employment, and the US Department of Agriculture. While the data use the most current information available at the time the reports were prepared, the information will need to be revised and updated to reflect the most recent demographic information available.

Helpful Resources

Click here to learn review the data behind the demographics of Arapahoe County - What characteristics distinguish Arapahoe County from other counties in Colorado? Learn more about the demographics behind our population, updated to include 2014 information.