4 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Yoakum | 1 | 5,834 | 5,903 | -0.24% | 1,274 | 4.58 | City |
| Hallettsville | 2 | 2,776 | 2,726 | 0.36% | 1,015 | 2.73 | City |
| Shiner | 3 | 2,187 | 2,126 | 0.55% | 886 | 2.47 | City |
| Moulton | 4 | 859 | 859 | 0% | 1,029 | 0.83 | Town |
Yoakum is the largest city in Lavaca County, with a population of 5,834.
Moulton is the smallest city in Lavaca County.
There are 4 cities in Lavaca County, Texas.