ZIP Code Area 812XX
- ZIP Code Area 81201
- ZIP Code Area 81210
- ZIP Code Area 81211
- ZIP Code Area 81212
- ZIP Code Area 81220
- ZIP Code Area 81221
- ZIP Code Area 81222
- ZIP Code Area 81223
- ZIP Code Area 81224
- ZIP Code Area 81225
- ZIP Code Area 81226
- ZIP Code Area 81227
- ZIP Code Area 81230
- ZIP Code Area 81231
- ZIP Code Area 81232
- ZIP Code Area 81233
- ZIP Code Area 81235
- ZIP Code Area 81236
- ZIP Code Area 81237
- ZIP Code Area 81239
- ZIP Code Area 81240
- ZIP Code Area 81241
- ZIP Code Area 81242
- ZIP Code Area 81243
- ZIP Code Area 81244
- ZIP Code Area 81248
- ZIP Code Area 81251
- ZIP Code Area 81252
- ZIP Code Area 81253