| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| San Antonio | 1 | 1,572,360 | 1,438,310 | 1.55% | 3,152 | 499 | City |
| Converse | 2 | 33,402 | 27,859 | 2.84% | 3,537 | 9 | City |
| Universal City | 3 | 20,552 | 19,751 | 0.75% | 3,645 | 6 | City |
| Live Oak | 4 | 16,546 | 15,818 | 0.73% | 3,478 | 5 | City |
| Fair Oaks Ranch | 5 | 12,483 | 9,939 | 3.81% | 1,018 | 12 | City |
| Selma | 6 | 12,082 | 11,424 | 1.06% | 2,412 | 5 | City |
| Leon Valley | 7 | 11,549 | 11,546 | -0.12% | 3,330 | 3 | City |
| Helotes | 8 | 10,672 | 9,027 | 2.74% | 1,540 | 7 | City |
| Kirby | 9 | 8,221 | 8,152 | 0.12% | 4,111 | 2 | City |
| Alamo Heights | 10 | 7,692 | 7,380 | 0.79% | 4,178 | 2 | City |
| Sandy Oaks | 11 | 6,027 | 5,097 | 2.6% | 2,527 | 2 | City |
| Windcrest | 12 | 5,798 | 5,856 | -0.19% | 2,697 | 2 | City |
| Terrell Hills | 13 | 5,248 | 5,049 | 0.63% | 3,256 | 2 | City |
| Castle Hills | 14 | 3,941 | 3,978 | -0.18% | 1,596 | 2 | City |
| Shavano Park | 15 | 3,934 | 3,535 | 1.89% | 1,196 | 3 | City |
| Elmendorf | 16 | 3,316 | 1,867 | 6.59% | 540 | 6 | City |
| Hollywood Park | 17 | 3,134 | 3,164 | -0.19% | 2,167 | 1 | Town |
| Balcones Heights | 18 | 2,724 | 2,745 | -0.15% | 4,159 | 1 | City |
| St. Hedwig | 19 | 2,443 | 2,215 | 1.62% | 82 | 30 | Town |
| Olmos Park | 20 | 2,181 | 2,171 | 0.05% | 3,552 | 1 | City |
| Somerset | 21 | 1,895 | 1,770 | 1.23% | 948 | 2 | City |
| LaCoste | 22 | 1,289 | 1,085 | 2.71% | 2,043 | 1 | City |
| Von Ormy | 23 | 1,252 | 1,180 | 0.89% | 662 | 2 | City |
| China Grove | 24 | 1,150 | 1,144 | 0.09% | 267 | 4 | Town |
| Hill Country Village | 25 | 973 | 944 | 0.31% | 444 | 2 | City |
| Santa Clara | 26 | 743 | 743 | -0.27% | 325 | 2 | City |
San Antonio is the largest city in Bexar County, with a population of 1,572,360.
Santa Clara is the smallest city in Bexar County, with a population of 743.
There are 26 cities in Bexar County, Texas.