26 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| San Antonio | 1 | 1,570,314 | 1,439,340 | 1.41% | 3,147 | 499 | City |
| Converse | 2 | 33,168 | 27,864 | 2.74% | 3,512 | 9 | City |
| Universal City | 3 | 20,524 | 19,753 | 0.63% | 3,640 | 6 | City |
| Live Oak | 4 | 16,417 | 15,820 | 0.61% | 3,451 | 5 | City |
| Fair Oaks Ranch | 5 | 12,648 | 9,935 | 3.71% | 1,032 | 12 | City |
| Selma | 6 | 12,136 | 11,428 | 0.98% | 2,423 | 5 | City |
| Leon Valley | 7 | 11,361 | 11,549 | -0.27% | 3,276 | 3 | City |
| Helotes | 8 | 10,775 | 9,118 | 2.63% | 1,555 | 7 | City |
| Kirby | 9 | 8,082 | 8,148 | -0.14% | 4,041 | 2 | City |
| Alamo Heights | 10 | 7,646 | 7,378 | 0.59% | 4,153 | 2 | City |
| Sandy Oaks | 11 | 5,996 | 5,102 | 2.55% | 2,514 | 2 | City |
| Windcrest | 12 | 5,744 | 5,858 | -0.33% | 2,672 | 2 | City |
| Terrell Hills | 13 | 5,189 | 5,047 | 0.46% | 3,219 | 2 | City |
| Shavano Park | 14 | 3,942 | 3,536 | 1.76% | 1,198 | 3 | City |
| Castle Hills | 15 | 3,908 | 3,977 | -0.28% | 1,583 | 2 | City |
| Hollywood Park | 16 | 3,110 | 3,164 | -0.29% | 2,151 | 1 | Town |
| Elmendorf | 17 | 3,088 | 1,873 | 7.04% | 503 | 6 | City |
| Balcones Heights | 18 | 2,688 | 2,744 | -0.33% | 4,104 | 1 | City |
| St. Hedwig | 19 | 2,450 | 2,231 | 1.53% | 83 | 30 | Town |
| Olmos Park | 20 | 2,148 | 2,168 | -0.14% | 3,498 | 1 | City |
| Somerset | 21 | 1,886 | 1,757 | 1.18% | 944 | 2 | City |
| LaCoste | 22 | 1,290 | 1,086 | 2.71% | 2,044 | 1 | City |
| Von Ormy | 23 | 1,233 | 1,179 | 0.74% | 652 | 2 | City |
| China Grove | 24 | 1,137 | 1,139 | 0% | 264 | 4 | Town |
| Hill Country Village | 25 | 953 | 941 | 0.21% | 435 | 2 | City |
| Santa Clara | 26 | 748 | 763 | -0.27% | 327 | 2 | City |
San Antonio is the largest city in Bexar County, with a population of 1,570,314.
Santa Clara is the smallest city in Bexar County, with a population of 748.
There are 26 cities in Bexar County, Texas.