A
Adams County
County seat: Brighton
Alamosa County
County seat: Alamosa
Arapahoe County
County seat: Littleton
Archuleta County
County seat: Pagosa Springs
B
Baca County
County seat: Springfield
Bent County
County seat: Las Animas
Boulder County
County seat: Boulder
Broomfield County
County seat: Broomfield
C
Chaffee County
County seat: Salida
Cheyenne County
County seat: Cheyenne Wells
Clear Creek County
County seat: Georgetown
Conejos County
County seat: Conejos
Costilla County
County seat: San Luis
Crowley County
County seat: Ordway
Custer County
County seat: Westcliffe
D
Delta County
County seat: Delta
Denver County
County seat: Denver
Dolores County
County seat: Dove Creek
Douglas County
County seat: Castle Rock
E
Eagle County
County seat: Eagle
Elbert County
County seat: Kiowa
El Paso County
County seat: Colorado Springs
F
Fremont County
County seat: Cañon City
G
Garfield County
County seat: Glenwood Springs
Gilpin County
County seat: Central City
Grand County
County seat: Hot Sulphur Springs
Gunnison County
County seat: Gunnison
H
Hinsdale County
County seat: Lake City
Huerfano County
County seat: Walsenburg
J
Jackson County
County seat: Walden
Jefferson County
County seat: Golden
K
Kiowa County
County seat: Eads
Kit Carson County
County seat: Burlington
L
Lake County
County seat: Leadville
La Plata County
County seat: Durango
Larimer County
County seat: Fort Collins
Las Animas County
County seat: Trinidad
Lincoln County
County seat: Hugo
Logan County
County seat: Sterling
M
Mesa County
County seat: Grand Junction
Mineral County
County seat: Creede
Moffat County
County seat: Craig
Montezuma County
County seat: Cortez
Montrose County
County seat: Montrose
Morgan County
County seat: Fort Morgan
O
Otero County
County seat: La Junta
Ouray County
County seat: Ouray
P
Park County
County seat: Fairplay
Phillips County
County seat: Holyoke
Pitkin County
County seat: Aspen
Prowers County
County seat: Lamar
Pueblo County
County seat: Pueblo
R
Rio Blanco County
County seat: Meeker
Rio Grande County
County seat: Del Norte
Routt County
County seat: Steamboat Springs
S
Saguache County
County seat: Saguache
San Juan County
County seat: Silverton
San Miguel County
County seat: Telluride
Sedgwick County
County seat: Julesburg
Summit County
County seat: Breckenridge
T
Teller County
County seat: Cripple Creek
W
Washington County
County seat: Akron
Weld County
County seat: Greeley
Y
Yuma County
County seat: Wray