4 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Yoakum | 1 | 5,854 | 5,917 | -0.17% | 1,278 | 5 | City |
| Hallettsville | 2 | 2,749 | 2,737 | 0.07% | 1,005 | 3 | City |
| Shiner | 3 | 2,186 | 2,117 | 0.55% | 886 | 2 | City |
| Moulton | 4 | 858 | 857 | 0% | 1,028 | 1 | Town |
Yoakum is the largest city in Lavaca County, with a population of 5,854.
Moulton is the smallest city in Lavaca County, with a population of 858.
There are 4 cities in Lavaca County, Texas.