4 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Shepherd | 1 | 1,947 | 2,092 | -1.47% | 319 | 6.10 | City |
| Coldspring | 2 | 893 | 825 | 1.59% | 481 | 1.86 | City |
| Point Blank | 3 | 710 | 650 | 1.72% | 351 | 2.02 | City |
| Cape Royale | 4 | 419 | 359 | -3.9% | 213 | 1.97 | CDP |
Shepherd is the largest city in San Jacinto County, with a population of 1,947.
Cape Royale is the smallest city in San Jacinto County.
There are 4 cities in San Jacinto County, Texas.