| Zip Code | City | Population ↓ |
|---|---|---|
| 77964 | Hallettsville | 7,911 |
| 77984 | Shiner | 4,365 |
| 77975 | Moulton | 1,643 |
| 77987 | Sweet Home | 146 |
| 77986 | Sublime | 16 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 5 ZCTAs in Lavaca County, Texas (US Census).