| Adams | Crowley | Gunnison | Mesa | Rio Blanco |
| Alamosa | Custer | Hinsdale | Mineral | Rio Grande |
| Arapahoe | Delta | Huerfano | Moffatt | Routt |
| Archuleta | Denver | Jackson | Montezuma | Saguache |
| Baca | Dolores | Jefferson | Montrose | San Juan |
| Bent | Douglas | Kiowa | Morgan | San Miguel |
| Boulder | Eagle | Kit Carson | Otero | Sedgwick |
| Broomfield | Elbert | Lake | Ouray | Summit |
| Chaffee | El Paso | La Plata | Park | Teller |
| Cheyenne | Fremont | Larimer | Phillips | Washington |
| Clear Creek | Garfield | Las Animas | Pitkin | Weld |
| Conejos | Gilpin | Logan | Prowers | Yuma |
| Costilla | Grand | Lincoln | Pueblo | Colorado |