Division: Mountain
| State | Code | Capital | Population |
|---|
| arizona | AZ | Phoenix | 6,166,318 |
| colorado | CO | Denver | 4,753,377 |
| idaho | ID | Boise | 1,466,465 |
| montana | MT | Helena | 944,632 |
| nevada | NV | Carson City | 2,495,529 |
| new mexico | NM | Santa Fe | 1,954,599 |
| utah | UT | Salt Lake City | 2,550,063 |
| wyoming | WY | Cheyenne | 515,004 |