7 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 77320 | Huntsville | 37,458 |
| 77340 | Huntsville | 35,439 |
| 77358 | New Waverly | 5,565 |
| 77367 | Riverside | 634 |
| 77334 | Dodge | 211 |
| 77341 | Huntsville | 0 |
| 77342 | Huntsville | 0 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 7 ZCTAs in Walker County, Texas (US Census).