| Place | Post Code |
|---|---|
| Back Creek, Gwydir | 2390 |
| Balfours Peak, Gwydir | 2403 |
| Bangheet, Gwydir | 2404 |
| Bingara, Gwydir | 2404 |
| Blue Nobby, Gwydir | 2408 |
| Boonal, Gwydir | 2409 |
| Cobbadah, Gwydir | 2347 |
| Coolatai, Gwydir | 2402 |
| Copeton, Gwydir | 2360 |
| Crooble, Gwydir | 2400 |
| Croppa Creek, Gwydir | 2411 |
| Dinoga, Gwydir | 2404 |
| Elcombe, Gwydir | 2404 |
| Gineroi, Gwydir | 2404 |
| Gravesend, Gwydir | 2401 |
| Gulf Creek, Gwydir | 2347 |
| Gundamulda, Gwydir | 2347 |
| Keera, Gwydir | 2404 |
| North Star, Gwydir | 2408 |
| Pallal, Gwydir | 2404 |
| Rocky Creek, Gwydir | 2390 |
| Upper Bingara, Gwydir | 2404 |
| Upper Horton, Gwydir | 2347 |
| Warialda, Gwydir | 2402 |
| Warialda Rail, Gwydir | 2402 |
| Whitlow, Gwydir | 2404 |