| Zip Area |
Cities |
| 820xx |
Albin, Bosler, Buford, Burns, Carpenter, Centennial, Cheyenne, FE Warren AFB, Garrett, Granite Canon, Hillsdale, Horse Creek, Jelm, Laramie, Meriden, Pine Bluffs, Rock River, Tie Siding |
| 821xx |
Yellowstone National Park |
| 822xx |
Chugwater, Fort Laramie, Glendo, Guernsey, Hartville, Hawk Springs, Huntley, Jay Em, Lagrange, Lance Creek, Lingle, Lost Springs, Lusk, Manville, Shawnee, Torrington, Van Tassell, Veteran, Wheatland, Yoder |
| 823xx |
Baggs, Bairoil, Dixon, Elk Mountain, Encampment, Hanna, Jeffrey City, Medicine Bow, Rawlins, Saratoga, Savery, Sinclair, Walcott, Wamsutter |
| 824xx |
Basin, Burlington, Byron, Cody, Cowley, Deaver, Emblem, Frannie, Greybull, Hamilton Dome, Hyattville, Kirby, Lovell, Manderson, Meeteetse, Otto, Powell, Ralston, Shell, Ten Sleep, Thermopolis, Wapiti, Worland |
| 825xx |
Arapahoe, Crowheart, Dubois, Fort Washakie, Hudson, Kinnear, Lander, Pavillion, Riverton, Saint Stephens |
| 826xx |
Alcova, Arminto, Bill, Casper, Douglas, Edgerton, Evansville, Glenrock, Hiland, Kaycee, Linch, Lysite, Midwest, Mills, Natrona, Powder River, Shirley Basin, Shoshoni |
| 827xx |
Aladdin, Alva, Beulah, Carlile, Devils Tower, Four Corners, Gillette, Hulett, Moorcroft, Newcastle, Osage, Recluse, Rozet, Sundance, Upton, Weston, Wright |
| 828xx |
Arvada, Banner, Big Horn, Buffalo, Clearmont, Dayton, Leiter, Parkman, Ranchester, Saddlestring, Sheridan, Story, Wolf, Wyarno |
| 829xx |
Bondurant, Boulder, Cora, Evanston, Farson, Fort Bridger, Granger, Green River, Little America, Lonetree, Lyman, Mc Kinnon, Mountain View, Pinedale, Point of Rocks, Reliance, Robertson, Rock Springs, Superior |
| 830xx |
Jackson, Kelly, Moose, Moran, Teton Village, Wilson |
| 831xx |
Afton, Alpine, Auburn, Bedford, Big Piney, Cokeville, Daniel, Diamondville, Etna, Fairview, Freedom, Frontier, Grover, Kemmerer, La Barge, Opal, Smoot, Thayne |
