The Community of Jefferson County
Once an agricultural and mining area, Jefferson County, Colorado is a thriving suburban, business, industrial, recreational and residential community. The county, formally organized in 1861 by the Colorado Territorial Legislature, takes the name of Thomas Jefferson, the third president of the United States.
Learn more about the thriving suburban, business, industrial, recreation and residential community that is Jefferson County.
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Events and happenings from all around the county for the benefit of Jefferson County residents and visitors.
Jefferson County has a first-class public school sysem and at least a dozen institutions of higher education.
Jefferson County has a history rich in people, events and progress. See the general history as well as that from our sesquicentennial.
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