| Locality | Post Code |
|---|---|
| Bellview, Austin | 77418 |
| Bellville, Austin | 77418 |
| Bellvue, Austin | 77418 |
| Bleiblerville, Austin | 78931 |
| Buckhorn, Austin | 77418 |
| Burleigh, Austin | 77418 |
| Cat Spring, Austin | 78933 |
| Cochran, Austin | 77418 |
| Frydek, Austin | 77474 |
| Industry, Austin | 78944 |
| Kenney, Austin | 77452 |
| Millheim, Austin | 77474 |
| Nelsonville, Austin | 77418 |
| New Ulm, Austin | 78950 |
| Peters, Austin | 77474 |
| Raccoon Bend, Austin | 77418 |
| San Felipe, Austin | 77473 |
| Sealy, Austin | 77474 |
| Wallis, Austin | 77485 |
| Welcome, Austin | 78944 |