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Counties
|
County |
Created |
Parent |
County Seat |
Administrator |
|
Unknown County |
|
|
|
|
|
|
|
|
|
|
|
Adams |
1903 |
Arapahoe |
Brighton |
|
|
Alamosa |
1913 |
Costilla, Conejos |
Alamosa |
|
|
Arapahoe |
1861 |
Original County |
Littleton |
|
|
Archuleta |
1885 |
Conejos |
Pagosa Springs |
|
|
Baca |
1889 |
Las Animas |
Springfield |
|
|
Bent |
1874 |
Greenwood |
Las Animas |
|
|
Boulder |
1861 |
Original County |
Boulder |
Linda
Simpson |
|
Broomfield |
2001 |
Adams, Boulder, Jefferson, Weld |
|
|
|
Chaffee |
1879 |
Lake |
Salida |
|
|
Cheyenne |
1889 |
Bent, Elbert |
Cheyenne Wells |
|
|
Clear Creek |
1861 |
Original County |
Georgetown |
|
|
Conejos |
1861 |
Original County |
Conejos |
|
|
Costilla |
1861 |
Original County |
San Luis |
|
|
Crowley |
1911 |
Bent, Otero |
Ordway |
|
|
Custer |
1877 |
Fremont |
Westcliffe |
|
|
Delta |
1883 |
Gunnison |
Delta |
|
|
Denver, City & County of |
1901 |
Arapahoe |
Denver |
|
|
Dolores |
1881 |
Ouray |
Dove Creek |
|
|
Douglas |
1861 |
Original County |
Castle Rock |
|
|
Eagle |
1883 |
Summit |
Eagle |
|
|
Elbert |
1874 |
Douglas, Greenwood |
Kiowa |
|
|
El Paso |
1861 |
Original County |
Colorado Springs |
|
|
Fremont |
1859 |
Original County |
Canon City |
|
|
Garfield |
1883 |
Summit |
Glenwood Springs |
|
|
Greenwood |
1870 |
Kit Carson; dissolved 1874; divided between Bent & Elbert
Counties |
|
|
Gilpin |
1861 |
Original County |
Central City |
|
|
Grand |
1874 |
Summit |
Hot Sulphur Springs |
|
|
Gunnison |
1877 |
Lake |
Gunnison |
|
|
Hinsdale |
1874 |
Conejos |
Lake City |
|
|
Huerfano |
1861 |
Original County |
Walsenburg |
|
|
Jackson |
1909 |
Grand, Larimer |
Walden |
|
|
Jefferson |
1861 |
Original County |
Golden |
|
|
Kiowa |
1889 |
Cheyenne, Bent |
Eads |
|
|
Kit Carson |
1889 |
Elbert |
Burlington |
|
|
Lake |
1861 |
Original County |
Leadville |
Gail
Meyer Kilgore |
|
La Plata |
1861 |
Original County |
Durango |
|
|
Larimer |
1861 |
Original County |
Fort Collins |
|
|
Las Animas |
1866 |
Huerfano |
Trinidad |
|
|
Lincoln |
1889 |
Elbert |
Hugo |
|
|
Logan |
1887 |
Weld |
Sterling |
|
|
Mesa |
1883 |
Gunnison |
Grand Junction |
|
|
Mineral |
1892 |
Hinsdale |
Creede |
|
|
Moffat |
1911 |
Routt |
Craig |
|
|
Montezuma |
1889 |
La Plata |
Cortez |
|
|
Montrose |
1883 |
Gunnison |
Montrose |
|
|
Morgan |
1889 |
Weld |
Fort Morgan |
|
|
Otero |
1889 |
Bent |
La Junta |
|
|
Ouray |
1877 |
Hinsdale, San Juan |
Ouray |
|
|
Park |
1861 |
Original County |
Fairplay |
Gail
Meyer Kilgore |
|
Phillips |
1889 |
Logan |
Holyoke |
|
|
Pitkin |
1881 |
Gunnison |
Aspen |
|
|
Platte |
1872 |
Weld; dissolved
1874;
reverted back to Weld County |
|
|
Prowers |
1889 |
Bent |
Lamar |
|
|
Pueblo |
1861 |
Original County |
Pueblo |
|
|
Rio Blanco |
1889 |
Summit |
Meeker |
|
|
Rio Grande |
1874 |
Conejos, Costilla |
Del Norte |
|
|
Routt |
1877 |
Grand |
Steamboat Springs |
|
|
Saguache |
1866 |
Rio Grande |
Saguache |
|
|
San Juan |
1876 |
La Plata |
Silverton |
|
|
San Miguel |
1883 |
Ouray |
Telluride |
|
|
Sedgwick |
1889 |
Logan |
Julesburg |
|
|
Summit |
1861 |
Original County |
Breckenridge |
|
|
Teller |
1899 |
El Paso |
Cripple Creek |
|
|
Washington |
1887 |
Weld, Arapahoe |
Akron |
|
|
Weld |
1861 |
Original County |
Greeley |
|
|
Yuma |
1889 |
Washington, Arapahoe |
Wray |
|
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