The population count of Arapahoe County, CO was 636,671 in 2018. The population count of Jefferson County, CO was 570,427 in 2018. The population count of Davis County, UT was 340,621 in 2018.
Population
Population Change
Above charts are based on data from the U.S. Census American Community Survey | ODN Dataset | API -
Demographics and Population Datasets Involving Jefferson County, CO or Arapahoe County, CO or Davis County, UT
- API
Census State in Colorado 2011
data.colorado.gov | Last Updated 2024-05-28T11:03:53.000ZAmerican Community Survey Census data includes demographics, education level, commute information, and more subset to Colorado by the Department of Local Affairs (DOLA).