Get to Know Us

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. View the Engage Jeffco video for more details about the county and its programs and services >>

Life in Jeffco

Learn more about the thriving suburban, business, industrial, recreation and residential community that is Jefferson County on our Life in Jeffco page.

County News

See all the latest news from all areas of the county.

County Events

See all the latest events from all areas of the county.

County Mission, Vision, Values and Goals

The county's Mission, Vision, Values and Goals gives staff and the community clearer and more concise direction and support. We created forward thinking and comprehensive goals that support our new mission, vision and values. Get more details >>


Jefferson County has a first-class public school system and at least a dozen institutions of higher education. Learn more on our Education page.


Jefferson County has a history rich in people, events and progress. See the general history as well as that from our sesquicentennial.


View maps and directions for Jeffco.

Slash Collection

See the details on slash locations and dates, fees and what is and is not accepted.

Stay Connected

See the complete list of Jefferson County social media sites, newsletters, blogs and more.