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Jefferson County

2:54

Jefferson County Sheriff's Office refutes young woman's claim of flirting to avoid DUI

2:32

Jefferson County Sheriff's Office makes Live PD debut on A&E

2:41

Man arrested after pursuit, gunfire exchange with deputies in Jefferson County

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Jefferson County deputies found more than bombs during traffic stop

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Body found in Big River in Jefferson County, Missouri

Jefferson County (Jeffco) is one of the 64 counties in the U.S. state of Colorado. As of the 2010 census, the population was 534,543, making it the fourth-most populous county in Colorado. The county seat is Golden, and the most populous city is Lakewood.
    • History 

    • Geography 

    • Demographics 

    • Government and infrastructure 

    • Recreation 

    • Communities