4 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Bastrop | 1 | 13,452 | 9,792 | 5.75% | 1,367 | 10 | City |
| Elgin | 2 | 13,097 | 9,802 | 5.3% | 1,805 | 7 | City |
| Smithville | 3 | 4,400 | 4,072 | 1.5% | 1,084 | 4 | City |
| Webberville | 4 | 489 | 403 | 3.6% | 234 | 2 | Village |
Bastrop is the largest city in Bastrop County, with a population of 13,452.
Webberville is the smallest city in Bastrop County, with a population of 489.
There are 4 cities in Bastrop County, Texas.