Austin County ZIP Codes
Austin County is a county of Texas.
- ZIP codes
- 9
- Cities & towns
- 9
- Area codes
- 6
- Land area
- 646 sq mi
Every ZIP code in Austin County
| ZIP code | City |
|---|---|
| 77418 | Bellville |
| 77452 | Kenney |
| 77473 | San Felipe |
| 77474 | Sealy |
| 77485 | Wallis |
| 78931 | Bleiblerville |
| 78933 | Cat Spring |
| 78944 | Industry |
| 78950 | New Ulm |
We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Austin County codes above are listed without a column we would have to invent.
Cities and towns in Austin County
A further 4 places in Austin County appear in the postal source without a page of its own; their codes are in the table above and each one links to its own page.
Area codes covering Austin County
Telephone and postal boundaries are drawn by different bodies, so these codes overlap the county without matching its edges.
- 281 Area code 281
- 346 Area code 346
- 621 Area code 621
- 713 Area code 713
- 832 Area code 832
- 979 Area code 979
Where Austin County's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Scope every ZIP code recorded in Austin County. Source GeoNames US postal codes (2026-07 postal dump), Census 2024 county Gazetteer (2024 Gazetteer) and geoinfo-dataset (full_dataset) ZIP→NPA (2018 snapshot). Updated . The outline is a convex envelope of ZIP reference points, not a jurisdiction boundary.