6 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Port Lavaca | 1 | 11,008 | 11,518 | -0.92% | 1,084 | 10.15 | City |
| Seadrift | 2 | 1,017 | 996 | 0.39% | 795 | 1.28 | City |
| Port O'Connor | 3 | 676 | 1,139 | -5.32% | 170 | 3.98 | CDP |
| Point Comfort | 4 | 536 | 601 | -2.37% | 408 | 1.31 | City |
| Alamo Beach | 5 | 219 | 736 | 7.35% | 289 | 0.76 | CDP |
| Magnolia Beach | 6 | 196 | 74 | 7.1% | 192 | 1.02 | CDP |
Port Lavaca is the largest city in Calhoun County, with a population of 11,008.
Magnolia Beach is the smallest city in Calhoun County.
There are 6 cities in Calhoun County, Texas.