A- Akron, Alamosa, Arvada, Aspen, Aurora, Avon
B- Bellvue, Bennett, Berthoud, Boulder, Brighton, Broomfield, Brush, Buena Vista, Buffalo Creek, Burlington, Byers
C- Canon City, Carbondale, Castle Rock, Center, Cheyenne Wells, Clifton, Colorado Springs, Commerce City, Conifer, Cortez, Craig, Cripple Creek
D- Delta, Denver, Dillon, Divide, Dolores, Durango
E- Eagle, Edwards, Elizabeth, Englewood, Erie, Evans, Evergreen
F- Fort Collins, Fort Lupton, Fort Morgan, Fountain, Frisco, Fruita
G- Glenwood Springs, Golden, Granby, Grand Junction, Greeley, Gunnison, Gypsum
H- Hudson, Hugo
I- Idaho Springs, Ignacio
J- Johnstown
K- Kiowa
L- La Junta, La Salle, Lafayette, Lake George, Lakewood, Lamar, Leadville, Limon, Littleton, Longmont, Louisville, Loveland, Lucerne
M- Meeker, Monte Vista, Montrose, Monument
N- Nederland
P- Pagosa Springs, Paonia, Parker, Peyton, Pine, Pueblo
R- Rifle, Rocky Ford
S- Salida, Silt, Snowmass Village, Steamboat Springs, Sterling
T- Telluride, Thornton, Trinidad
V- Vail
W- Walsenburg, Westminster, Wheat Ridge, Windsor, Woodland Park
Y- Yuma