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