Adams County | |
|---|---|
 Adams County Government Center in Brighton | |
 Flag | |
 Location within the U.S. state of Colorado | |
 Colorado's location within the U.S. | |
| Coordinates: 39°52′N 104°21′W / 39.87°N 104.35°W | |
| Country |  United States |
| State |  Colorado |
| Founded | April 15, 1901 |
| Named for | Alva Adams[1] |
| Seat | Brighton |
| Largest city | Thornton |
| Area | |
• Total | 1,184 sq mi (3,070 km2) |
| • Land | 1,168 sq mi (3,030 km2) |
| • Water | 16 sq mi (40 km2) 1.4% |
| Population (2020) | |
• Total | 519,572 |
• Estimate (2023) | 533,365  |
| • Density | 440/sq mi (170/km2) |
| Time zone | UTC−7 (Mountain) |
| • Summer (DST) | UTC−6 (MDT) |
| Congressional districts | 4th, 6th, 7th, 8th |
| Website | www |
Fifth most populous Colorado county | |
Adams County is a county located in the U.S. state of Colorado. As of the 2020 census, the population was 519,572.[2] The county seat is Brighton, and the largest city is Thornton.[3] The county is named for Alva Adams, an early Governor of the State of Colorado in 1887–1889.[1] Adams County is part of the Denver–Aurora–Lakewood, CO Metropolitan Statistical Area.
- ^ a b Gannett, Henry (1905). The Origin of Certain Place Names in the United States. U.S. Government Printing Office. pp. 23.
- ^ "U.S. Census Bureau QuickFacts". U.S. Census Bureau. Retrieved September 4, 2021.
- ^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.