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  • The Jefferson County Sheriff's Office (JCSO) was founded in November 1859 and today serves 189,720 residents in the unincorporated areas of the county. The Sheriff's Office has grown and advanced along with its communities.

    Today, it is one of the most progressive law enforcement agencies in the nation. As the largest full-service sheriff's office in Colorado, the agency has more than 500 sworn deputies and more than 200 non-sworn employees who provide services to the community.

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