Douglas County, Colorado
Douglas County | |
|---|---|
One of two county buildings for Douglas County in Castle Rock | |
Location within the U.S. state of Colorado | |
Colorado's location within the U.S. | |
| Coordinates: 39°21′N 104°56′W / 39.35°N 104.93°W | |
| Country | United States |
| State | Colorado |
| Founded | November 1, 1861 |
| Named after | Stephen A. Douglas |
| Seat | Castle Rock |
| Largest community | Highlands Ranch |
| Area | |
• Total | 843 sq mi (2,180 km2) |
| • Land | 840 sq mi (2,200 km2) |
| • Water | 2.6 sq mi (7 km2) 0.3% |
| Population (2020) | |
• Total | 357,978 |
• Estimate (2024) | 393,995 |
| • Density | 420/sq mi (160/km2) |
| Time zone | UTC−7 (Mountain) |
| • Summer (DST) | UTC−6 (MDT) |
| Congressional districts | 4th, 6th |
| Website | www |
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.
Douglas County is part of the Denver metropolitan area. It is located midway between Colorado's two largest cities, Denver and Colorado Springs, and contains a portion of Aurora, the state's third-largest city. Douglas County has the highest median household income of any Colorado county or statistical equivalent. It is ranked seventh nationally in that category.