ZIP Code Area 816XX
- ZIP Code Area 81601
- ZIP Code Area 81610
- ZIP Code Area 81611
- ZIP Code Area 81612
- ZIP Code Area 81615
- ZIP Code Area 81620
- ZIP Code Area 81621
- ZIP Code Area 81623
- ZIP Code Area 81624
- ZIP Code Area 81625
- ZIP Code Area 81630
- ZIP Code Area 81631
- ZIP Code Area 81632
- ZIP Code Area 81633
- ZIP Code Area 81635
- ZIP Code Area 81637
- ZIP Code Area 81638
- ZIP Code Area 81639
- ZIP Code Area 81640
- ZIP Code Area 81641
- ZIP Code Area 81642
- ZIP Code Area 81643
- ZIP Code Area 81645
- ZIP Code Area 81646
- ZIP Code Area 81647
- ZIP Code Area 81648
- ZIP Code Area 81649
- ZIP Code Area 81650
- ZIP Code Area 81652
- ZIP Code Area 81653
- ZIP Code Area 81654
- ZIP Code Area 81655
- ZIP Code Area 81656
- ZIP Code Area 81657