| Locality | Post Code |
|---|---|
| Dateland, Yuma | 85333 |
| Gadsden, Yuma | 85336 |
| Martinez Lake, Yuma | 85365 |
| Roll, Yuma | 85347 |
| San Luis, Yuma | 85336, 85349 |
| Somerton, Yuma | 85350 |
| Tacna, Yuma | 85352 |
| Wellton, Yuma | 85356 |
| Yuma, Yuma | 85364, 85365, 85367 |
| Yuma Proving Ground, Yuma | 85365 |