From DenverRealEstateSource.com

Area Counties
Jefferson County Colorado
By The Sullivan Group/Jefferson County

Jefferson County


Jefferson County Colorado once an agricultural and mining area, is now a thriving suburban, business, industrial and residential community. With new homes and new construction everyday.


It's a place where the great plains meet the Rocky Mountains; with some of the most magnificent scenery in the country, from rolling grasslands and craggy rock formations, to natural foothills, rugged mountains and tumbling mountain streams.

County Statistics

Latest Population Figures: Countywide: 529,401, Unincorporated: 184,640

Latitude and Longitude: The latitude and longitude of the Jefferson County Administration and Courts Facility is 105º 11' 56'' W, 39º 43' 38'' N.
The latitude and longitude of any other address within Jefferson County is available by visiting our Address Wizard.

Land Area: 774 Square miles, 497,280 acres

Incorporated area: 116.5 square miles

Unincorporated area: 655 square miles



Mountain area: 557 square miles, 72%

Plains area: 217 square miles, 28%

Pike National Forest: 172 square miles 22%

Roosevelt and Arapahoe National Forests: 4 square miles, 0.5%

Climate: Average days of sunshine: 255 per year

Coldest month: January

Average temp: 30 degrees

Hottest month: July

Average temp: 74 degrees

Annual precipitation: 15.4 inches

Average annual snowfall: 60.3 inches

Average humidity: 40 percent





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