A- Alamosa, Arvada, Aspen, Aurora
B- Berthoud, Black Hawk, Boulder, Breckenridge, Broomfield, Brush, Buena Vista, Burlington
C- Canon City, Castle Rock, Cedaredge, Central City, Colorado Springs, Cortez, Creede, Crested Butte, Cripple Creek
D- Del Norte, Delta, Denver, Dillon, Dolores, Durango
E- Eads, Estes Park, Evans, Evergreen
F- Fairplay, Fort Collins, Fowler, Fraser, Frisco, Fruita
G- Genoa, Georgetown, Glenwood Springs, Golden, Grand Junction, Greeley, Gunnison
H- Hayden, Hot Sulphur Springs, Hotchkiss, Hugo
I- Idaho Springs, Ignacio
J- Julesburg
L- La Junta, La Veta, Lafayette, Lake City, Lakewood, Lamar, Leadville, Limon, Littleton, Longmont, Louisville, Loveland
M- Meeker, Monte Vista, Montrose, Morrison
N- Nederland
O- Ouray
P- Pagosa Springs, Palmer Lake, Parker, Platteville, Pueblo
R- Rangely, Rifle, Rocky Ford
S- Saguache, Salida, San Luis, Silt, Silver Plume, Silverton, Steamboat Springs, Sterling, Strasburg
T- Telluride, Trinidad
V- Vail, Victor
W- Walden, Walsenburg, Wellington, Westminster, Wheat Ridge, Woodland Park, Wray