Douglas County Colorado Seal

Douglas County is a county located in the U.S. state of Colorado. As of the 2020 Census, the population was 357,978. The county is named in honor of U.S. Senator Stephen A. Douglas. The county seat is Castle Rock.
  • Country: United States
  • State: Colorado
  • Founded: November 1, 1861
  • Named for: Stephen A. Douglas
  • Seat: Castle Rock
  • Largest community: Highlands Ranch
  • Congressional districts: 4th, 6th

Nearby

Data from: en.wikipedia.org