County listing of each region :
| Region 1 | Metro Area (Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver, Douglas, Gilpin, Jefferson) | |
| Region 2 | Ft. Collins Area – Includes Weld, Larimer Counties (Larimer, Morgan, Weld) | |
| Region 3 | Colorado Springs/Pueblo Area (Crowley, Elbert, El Paso, Fremont, Park, Pueblo, Teller) | |
| Region 4 | Grand Junction Area (Chaffee, Delta, Eagle, Garfield, Gunnison, Lake, Mesa, Pitkin, Summit) | |
| Region 5 | Southwestern Colorado (Alamosa, Archuleta, Conejos, Custer, Dolores, Hinsdale, La Plata, Mineral, Montezuma, Montrose, Ouray, Rio Grande, Saguache, San Juan, San Miguel) | |
| Region 6 | Northeastern Colorado (Cheyenne, Kit Carson, Lincoln, Logan, Phillips, Sedgwick, Washington, Yuma) | |
| Region 7 | Northwestern Colorado (Grand, Jackson, Moffat, Rio Blanco, Routt) | |
| Region 8 | Southeastern Colorado (Baca, Bent, Costilla, Huerfano, Kiowa, Las Animas, Otero, Prowers) |