Jefferson County, Colorado
Jefferson County sits just west of Denver, where the plains meet the foothills. With a population of more than 580,000 people, it is one of the larger counties in Colorado and continues to grow.
Golden serves as the county seat and is home to the Coors brewery. Red Rocks Park is another major attraction, famous for its dramatic amphitheater, hiking trails, and scenic surroundings.
The county stretches from the edges of the Denver metro area into the mountain peaks. Government jobs are an important part of the local economy, along with a strong outdoor recreation industry. Jefferson County also faces an ongoing balance between new development and preserving its remaining open spaces.
| Category | Details |
|---|---|
| County Name | Jefferson County |
| County Seat | Golden |
| Etymology | Named in honor of Thomas Jefferson, the third President of the United States |
| Cities, Towns, and Communities | Arvada, Lakewood, Westminster, Golden, Littleton (partly), and others |
| Interstates and Highways | I-70, I-76, US 6, US 40, CO 93, CO 121 |
| FIPS Code | 08-059 |
| Total Area (Land and Water) | 773 square miles (Land: 766 sq mi, Water: 7 sq mi) |
| Adjacent Counties (and Direction) | Boulder County (North), Broomfield County (Northeast), Adams County (East), Denver County (East), Arapahoe County (East), Douglas County (East), Teller County (South), Park County (Southwest), Clear Creek County (West), Gilpin County (Northwest) |
| Time Zone | Mountain Standard Time (MST) |
| Population | Approximately 580,000 |
| State | Colorado |
| Coordinates | 39.7392° N, 105.0184° W |
| Major Landmarks | Red Rocks Amphitheatre, Lookout Mountain, Mount Evans, Denver Botanic |
PHYSICAL MAP
Jefferson County Topographic Map
This topographic map highlights the contrast between the eastern foothills and western mountains. Red Rocks and other distinctive formations stand out clearly, while the zoom tool lets you examine the county’s steep elevation changes in greater detail.
SATELLITE IMAGERY
Jefferson County Satellite Map
From above, you can see forests covering much of the mountainous western half, while development follows the valleys. The distinctive red formations of Red Rocks stand out against the surrounding greenery.
OUTLINE MAP
Jefferson County Blank Map
Jefferson County’s outline map follows the Front Range, with mountains along the western side. The county lies directly west of Denver and has a north-south orientation.
Colorado County Maps
Colorado County Map
Think you know all 64 counties in Colorado? Our Colorado County Map brings them all together in one place, from the towering Rocky Mountains to the expansive eastern plains. Explore the Centennial State county by county and discover the diverse regions that make Colorado unique.