Jefferson County, Colorado Basics:
Jefferson County Colorado - Government Site
Population: 545,476
Area: 764 square miles
County seat: Golden
Area code(s) in use: 303
Time zone: MST
High school graduate or higher: 93.5%
Bachelor's degree or higher: 40.4%
Median household income: $68,748
Persons in poverty: 8.6%
Home ownership rate: 70.7%
Mean travel time to work: 26.3 minutes
Adjacent counties:
Adams Arapahoe Boulder Broomfield Clear Creek Denver Douglas Gilpin Park Teller