Business planning by county

Colorado county reference

64 counties and county equivalents in Colorado. Search names or FIPS codes, compare Census geography and keep the original sources with your work.

• Adams County

  Colorado · FIPS 08001

  554,668 residents · 2025 estimate

• Alamosa County

  Colorado · FIPS 08003

  16,688 residents · 2025 estimate

• Arapahoe County

  Colorado · FIPS 08005

  673,820 residents · 2025 estimate

• Archuleta County

  Colorado · FIPS 08007

  14,306 residents · 2025 estimate

• Baca County

  Colorado · FIPS 08009

  3,347 residents · 2025 estimate

• Bent County

  Colorado · FIPS 08011

  5,716 residents · 2025 estimate

• Boulder County

  Colorado · FIPS 08013

  328,560 residents · 2025 estimate

• Broomfield County

  Colorado · FIPS 08014

  79,174 residents · 2025 estimate

• Chaffee County

  Colorado · FIPS 08015

  20,831 residents · 2025 estimate

• Cheyenne County

  Colorado · FIPS 08017

  1,713 residents · 2025 estimate

• Clear Creek County

  Colorado · FIPS 08019

  8,994 residents · 2025 estimate

• Conejos County

  Colorado · FIPS 08021

  7,529 residents · 2025 estimate

• Costilla County

  Colorado · FIPS 08023

  3,679 residents · 2025 estimate

• Crowley County

  Colorado · FIPS 08025

  5,677 residents · 2025 estimate

• Custer County

  Colorado · FIPS 08027

  5,590 residents · 2025 estimate

• Delta County

  Colorado · FIPS 08029

  32,178 residents · 2025 estimate

• Denver County

  Colorado · FIPS 08031

  740,613 residents · 2025 estimate

• Dolores County

  Colorado · FIPS 08033

  2,466 residents · 2025 estimate

• Douglas County

  Colorado · FIPS 08035

  399,396 residents · 2025 estimate

• Eagle County

  Colorado · FIPS 08037

  54,291 residents · 2025 estimate

• El Paso County

  Colorado · FIPS 08041

  757,040 residents · 2025 estimate

• Elbert County

  Colorado · FIPS 08039

  30,534 residents · 2025 estimate

• Fremont County

  Colorado · FIPS 08043

  50,039 residents · 2025 estimate

• Garfield County

  Colorado · FIPS 08045

  63,474 residents · 2025 estimate

• Gilpin County

  Colorado · FIPS 08047

  6,073 residents · 2025 estimate

• Grand County

  Colorado · FIPS 08049

  16,496 residents · 2025 estimate

• Gunnison County

  Colorado · FIPS 08051

  17,439 residents · 2025 estimate

• Hinsdale County

  Colorado · FIPS 08053

  753 residents · 2025 estimate

• Huerfano County

  Colorado · FIPS 08055

  7,011 residents · 2025 estimate

• Jackson County

  Colorado · FIPS 08057

  1,211 residents · 2025 estimate

• Jefferson County

  Colorado · FIPS 08059

  580,451 residents · 2025 estimate

• Kiowa County

  Colorado · FIPS 08061

  1,412 residents · 2025 estimate

• Kit Carson County

  Colorado · FIPS 08063

  7,069 residents · 2025 estimate

• La Plata County

  Colorado · FIPS 08067

  56,898 residents · 2025 estimate

• Lake County

  Colorado · FIPS 08065

  7,552 residents · 2025 estimate

• Larimer County

  Colorado · FIPS 08069

  377,292 residents · 2025 estimate

• Las Animas County

  Colorado · FIPS 08071

  14,391 residents · 2025 estimate

• Lincoln County

  Colorado · FIPS 08073

  5,645 residents · 2025 estimate

• Logan County

  Colorado · FIPS 08075

  20,654 residents · 2025 estimate

• Mesa County

  Colorado · FIPS 08077

  162,845 residents · 2025 estimate

• Mineral County

  Colorado · FIPS 08079

  910 residents · 2025 estimate

• Moffat County

  Colorado · FIPS 08081

  13,122 residents · 2025 estimate

• Montezuma County

  Colorado · FIPS 08083

  26,678 residents · 2025 estimate

• Montrose County

  Colorado · FIPS 08085

  44,591 residents · 2025 estimate

• Morgan County

  Colorado · FIPS 08087

  30,306 residents · 2025 estimate

• Otero County

  Colorado · FIPS 08089

  17,683 residents · 2025 estimate

• Ouray County

  Colorado · FIPS 08091

  5,265 residents · 2025 estimate

• Park County

  Colorado · FIPS 08093

  18,314 residents · 2025 estimate

• Phillips County

  Colorado · FIPS 08095

  4,420 residents · 2025 estimate

• Pitkin County

  Colorado · FIPS 08097

  16,625 residents · 2025 estimate

• Prowers County

  Colorado · FIPS 08099

  11,884 residents · 2025 estimate

• Pueblo County

  Colorado · FIPS 08101

  169,277 residents · 2025 estimate

• Rio Blanco County

  Colorado · FIPS 08103

  6,683 residents · 2025 estimate

• Rio Grande County

  Colorado · FIPS 08105

  11,087 residents · 2025 estimate

• Routt County

  Colorado · FIPS 08107

  25,329 residents · 2025 estimate

• Saguache County

  Colorado · FIPS 08109

  6,732 residents · 2025 estimate

• San Juan County

  Colorado · FIPS 08111

  813 residents · 2025 estimate

• San Miguel County

  Colorado · FIPS 08113

  7,753 residents · 2025 estimate

• Sedgwick County

  Colorado · FIPS 08115

  2,247 residents · 2025 estimate

• Summit County

  Colorado · FIPS 08117

  31,517 residents · 2025 estimate

• Teller County

  Colorado · FIPS 08119

  24,756 residents · 2025 estimate

• Washington County

  Colorado · FIPS 08121

  4,732 residents · 2025 estimate

• Weld County

  Colorado · FIPS 08123

  378,426 residents · 2025 estimate

• Yuma County

  Colorado · FIPS 08125

  9,896 residents · 2025 estimate

Use the county data

Use a county reference when organizing a market-research brief, outreach territory or business calculation. County population gives geographic context; it does not measure the number of qualified customers.

These are geographic reference records, not contact lists or verified sales leads.

Geography: 2025 U.S. Census Gazetteer. Population: Vintage 2025 estimates, July 1, 2025. County equivalents include parishes, boroughs, independent cities and planning regions. Puerto Rico population is not supplied by this population file.