1 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Fredericksburg | 1 | 11,949 | 11,032 | 1.56% | 1,250 | 10 | City |
Fredericksburg is the largest city in Gillespie County, with a population of 11,949.
Fredericksburg is the smallest city in Gillespie County, with a population of 11,949.
There is 1 city in Gillespie County, Texas.