| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in Austin, Delta | 81410 |
| Postal/ZIP Codes in Bowie, Delta | 81428 |
| Postal/ZIP Codes in Cedaredge, Delta | 81413 |
| Postal/ZIP Codes in Coalby, Delta | 81413 |
| Postal/ZIP Codes in Cory, Delta | 81414 |
| Postal/ZIP Codes in Crawford, Delta | 81415 |
| Postal/ZIP Codes in Delta, Delta | 81416 |
| Postal/ZIP Codes in Eckert, Delta | 81418 |
| Postal/ZIP Codes in Grand Mesa, Delta | 81413 |
| Postal/ZIP Codes in Hotchkiss, Delta | 81419 |
| Postal/ZIP Codes in Lazear, Delta | 81420 |
| Postal/ZIP Codes in Maher, Delta | 81415 |
| Postal/ZIP Codes in Orchard City, Delta | 81410, 81418 |
| Postal/ZIP Codes in Paonia, Delta | 81428 |
| Postal/ZIP Codes in Rogers Mesa, Delta | 81419 |