20 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Austin | 1 | 1,000,511 | 965,893 | 0.7% | 3,066 | 326 | City |
| Leander | 2 | 94,177 | 60,847 | 7.62% | 2,434 | 39 | City |
| Pflugerville | 3 | 67,151 | 65,490 | 0.5% | 2,600 | 26 | City |
| Manor | 4 | 23,352 | 14,091 | 8.61% | 2,382 | 10 | City |
| Brushy Creek | 5 | 22,412 | 18,593 | 0.2% | 3,474 | 6 | CDP |
| Steiner Ranch | 6 | 22,349 | 16,424 | 7.14% | 3,367 | 7 | CDP |
| Wells Branch | 7 | 14,396 | 12,512 | 1.07% | 5,924 | 2 | CDP |
| Lago Vista | 8 | 10,505 | 8,984 | 2.98% | 727 | 14 | City |
| Bee Cave | 9 | 8,349 | 9,153 | -1.89% | 958 | 9 | City |
| Hudson Bend | 10 | 3,845 | 2,438 | 1.53% | 964 | 4 | CDP |
| Barton Creek | 11 | 3,273 | 2,395 | 0.4% | 668 | 5 | CDP |
| West Lake Hills | 12 | 3,152 | 3,429 | -1.75% | 877 | 4 | City |
| Jonestown | 13 | 2,671 | 2,388 | 2.14% | 409 | 7 | City |
| The Hills | 14 | 2,274 | 2,614 | -2.9% | 2,117 | 1 | Village |
| Manchaca | 15 | 2,268 | 1,370 | 3.47% | 1,160 | 2 | CDP |
| Lost Creek | 16 | 1,449 | 1,123 | 7.17% | 725 | 2 | CDP |
| Rollingwood | 17 | 1,430 | 1,470 | -0.56% | 2,049 | 1 | City |
| Point Venture | 18 | 1,238 | 1,263 | -0.4% | 1,446 | 1 | Village |
| Sunset Valley | 19 | 602 | 674 | -2.43% | 431 | 1 | City |
| Volente | 20 | 512 | 560 | -1.92% | 242 | 2 | Village |
Austin is the largest city in Travis County, with a population of 1,000,511.
Volente is the smallest city in Travis County, with a population of 512.
There are 20 cities in Travis County, Texas.