A- Akron, Alamosa, Arvada, Ault, Aurora, Avon
B- Bayfield, Bennett, Berthoud, Boulder, Brighton, Broomfield, Brush, Buena Vista, Burlington
C- Calhan, Canon City, Castle Rock, Center, Cheyenne Wells, Clifton, Collbran, Colorado Springs, Commerce City, Conifer, Cortez, Craig, Crested Butte
D- Del Norte, Delta, Denver, Divide, Dove Creek, Durango
E- Eads, Eagle, Eaton, Elizabeth, Englewood, Erie, Estes Park, Evans, Evergreen
F- Fairplay, Firestone, Flagler, Florence, Fort Collins, Fort Lupton, Fort Morgan, Fountain, Frisco, Fruita
G- Glenwood Springs, Golden, Granby, Grand Junction, Greeley, Gunnison, Gypsum
H- Haxtun, Hayden, Henderson, Holly, Holyoke, Hotchkiss, Hudson
I- Idaho Springs
J- Johnstown, Julesburg
K- Keenesburg, Kersey, Kremmling
L- La Jara, La Junta, Lafayette, Lakewood, Lamar, Las Animas, Leadville, Limon, Littleton, Longmont, Louisville, Loveland
M- Mancos, Mead, Meeker, Milliken, Monte Vista, Montrose, Monument
N- Norwood
O- Ordway
P- Pagosa Springs, Palisade, Paonia, Parker, Penrose, Peyton, Pueblo
R- Rangely, Rifle, Rocky Ford
S- Salida, Sheridan Lake, Silverthorne, Springfield, Steamboat Springs, Sterling, Strasburg
T- Thornton, Trinidad
W- Walden, Walsenburg, Walsh, Westminster, Wheat Ridge, Wiggins, Windsor, Woodland Park, Wray