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A consolidated city-county differs from an independent city in that the city and county both nominally exist, although they have a consolidated government, whereas in an independent city, the county does not even nominally exist. [4]
On November 15, 1902, Arapahoe County split into Adams in the north and Denver was recognized as a consolidated city-county. By 1912, Jackson County, Moffat County, and Crowley County had been created.
County2000 PopulationSquare MilesCounty Seat363,8571,192Brighton14,966723Alamosa487,967803Littleton9,8981,349Pagosa Springs- Colorado Counties Map
- Interactive Map of Colorado Counties
- Largest Counties in Colorado by Population
- Smallest Counties in Colorado by Population
- Notable Colorado Counties
Below is a map of the 64 counties of Colorado(you can click on the map to enlarge it and to see the major city in each state).
Click on any of the counties on the map to see its population, economic data, time zone, and zip code (the data will appear below the map). Data is sourced from the US Census 2021.
The Colorado counties in this section are those with the biggest cities and population centers. Although there are modern, urban hubs in these counties, each is also closely connected to the surrounding landscape. Read on to learn more about Colorado’s most populous counties.
Colorado is known for its undisturbed natural landscapes, and these are possibly the most pristine in its least populous counties. These counties are mostly located in the mountains and were often founded during the excitement of the Colorado Gold Rush or Silver Boom. Their populations may have dwindled over the years, but these Colorado counties a...
Boulder County
Boulder County is nestled at the base of the Front Range of the Rocky Mountains and is a blend of beautiful scenery, academic opportunities, and cultural richness. The county seat and largest city in the county is Boulder, which owes its youthful population and energy in part to the University of Colorado. Outdoor activities abound in Boulder County. The Flatirons of Boulder are iconic rock formations that overlook the city and offer ample opportunities for hiking, rock climbing, and apprecia...
San Miguel County
Another especially notable county in Colorado is San Miguel County, located in the beautiful San Juan Mountains. The largest town and county seat is the popular Telluride, a historic mining town turned world-class ski resortand festival destination. Not only does the Telluride Ski Resort offer exceptional skiing during winter months, but there are also plenty of activities available to summer visitors. The town is a former silver mining camp located in a box canyon along the San Miguel River....
Pitkin County
Tucked within the heart of the Rocky Mountains, Pitkin County is known for luxury, natural beauty, and cultural sophistication. Aspen, the county’s most famous town, is a nexus of world-class skiing, upscale boutiques, and vibrant arts and culture. Once a booming silver mining town in the late 19th century, Aspen has transformed into a premier destination for celebrities, world travelers, and winter sports enthusiasts alike. Beyond its ski slopes, Aspen hosts esteemed events like the Aspen Mu...
Most counties in Colorado are governed by a board of 3-5 county commissioners that acts in both a legislative and executive capacity. Some counties, however, have consolidated with a city and are governed by a city council. City-county consolidated governments employ a chief executive leader while counties may have an appointed chief administrator.
In the State of Colorado, only Denver and Broomfield have consolidated city and county governments. The City and County of Denver operates under Article XX, Section 4 of the Constitution of the State of Colorado; and Title 30, Article 11, Section 101 of the Colorado Revised Statutes.
Municipality [1]Type Of Government [1]County [1][c][d]Population [5](2020 [a])4561,7579,806296There are 64 counties in Colorado. The cities and counties of Broomfield and Denver are consolidated city-county governments. They are classified as municipal governments, rather than as county governments, because they operate primarily as cities.
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Colorado is divided into 64 counties. Counties are important units of government in Colorado since the state has no secondary civil subdivisions, such as townships. Two of these counties, the City and County of Denver and the City and County of Broomfield, have consolidated city and county governments.
