Douglas County, Colorado

Douglas County
Douglas County
County
	One of two county buildings for Douglas County in Castle Rock
	Flag
	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 for	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
• Density	426/sq mi (164/km2)
Time zone	UTC−7 (Mountain)
• Summer (DST)	UTC−6 (MDT)
Congressional districts	4th, 6th
Website	www.douglas.co.us

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.^[1] The county seat is Castle Rock.^[2]

Douglas County is part of the Denver–Aurora–Lakewood metropolitan statistical 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.

^ "State & County QuickFacts". United States Census Bureau. Retrieved September 5, 2021.
^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.

[2020Census-1] "State & County QuickFacts". United States Census Bureau. Retrieved September 5, 2021.

[GR6-2] "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.

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[2]