Colorado counties and county equivalents
These are current canonical geography records. Historical boundaries and election reporting units can differ; consult each area's caveats.
- Adams County
FIPS 08001
- Alamosa County
FIPS 08003
- Arapahoe County
FIPS 08005
- Archuleta County
FIPS 08007
- Baca County
FIPS 08009
- Bent County
FIPS 08011
- Boulder County
FIPS 08013
- Broomfield County
FIPS 08014
- Chaffee County
FIPS 08015
- Cheyenne County
FIPS 08017
- Clear Creek County
FIPS 08019
- Conejos County
FIPS 08021
- Costilla County
FIPS 08023
- Crowley County
FIPS 08025
- Custer County
FIPS 08027
- Delta County
FIPS 08029
- Denver County
FIPS 08031
- Dolores County
FIPS 08033
- Douglas County
FIPS 08035
- Eagle County
FIPS 08037
- El Paso County
FIPS 08041
- Elbert County
FIPS 08039
- Fremont County
FIPS 08043
- Garfield County
FIPS 08045
- Gilpin County
FIPS 08047
- Grand County
FIPS 08049
- Gunnison County
FIPS 08051
- Hinsdale County
FIPS 08053
- Huerfano County
FIPS 08055
- Jackson County
FIPS 08057
- Jefferson County
FIPS 08059
- Kiowa County
FIPS 08061
- Kit Carson County
FIPS 08063
- La Plata County
FIPS 08067
- Lake County
FIPS 08065
- Larimer County
FIPS 08069
- Las Animas County
FIPS 08071
- Lincoln County
FIPS 08073
- Logan County
FIPS 08075
- Mesa County
FIPS 08077
- Mineral County
FIPS 08079
- Moffat County
FIPS 08081
- Montezuma County
FIPS 08083
- Montrose County
FIPS 08085
- Morgan County
FIPS 08087
- Otero County
FIPS 08089
- Ouray County
FIPS 08091
- Park County
FIPS 08093
- Phillips County
FIPS 08095
- Pitkin County
FIPS 08097
- Prowers County
FIPS 08099
- Pueblo County
FIPS 08101
- Rio Blanco County
FIPS 08103
- Rio Grande County
FIPS 08105
- Routt County
FIPS 08107
- Saguache County
FIPS 08109
- San Juan County
FIPS 08111
- San Miguel County
FIPS 08113
- Sedgwick County
FIPS 08115
- Summit County
FIPS 08117
- Teller County
FIPS 08119
- Washington County
FIPS 08121
- Weld County
FIPS 08123
- Yuma County
FIPS 08125