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