| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Ucross | city | Wyoming | United States | 44.56083 | -106.53944 | 4114 | 45 |
| Ulm | city | Wyoming | United States | 44.65167 | -106.58861 | 4599 | 47 |
| Underwood Crossing | city | Wyoming | United States | 43.49611 | -104.94417 | 4242 | 21 |
| Upton | city | Wyoming | United States | 44.09972 | -104.6275 | 4261 | 75 |
| Urie | city | Wyoming | United States | 41.31611 | -110.33556 | 6797 | 1574 |
| Uva | city | Wyoming | United States | 42.13194 | -104.91917 | 4501 | 1022 |
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