Gillespie County, Texas
County seat: Fredericksburg · Population 28,527 (2025) · 1,058 sq mi
Gillespie County is the 99th most populous of Texas's 254 counties, with 28,527 people (2025 estimate). Its county seat is Fredericksburg. It is part of the Alamo region, one of the 12 Texas Comptroller economic regions. The map shows its 1 city or town and the 6 neighboring counties.
Gillespie County facts
- County seat
- Fredericksburg
- Population (2025 estimate)
- 28,527 +6.7% since 2020
- Land area
- 1,058 sq mi 57th largest of 254
- Water area
- 4 sq mi
- Population density
- 27 per sq mi
- Established
- 1848
- Named after
- Robert Addison Gillespie Texas Ranger for whom Gillespie County, Texas is named (1815–1846)
- Largest city
- Fredericksburg 11,893
- Median household income
- $76,162
- Cities and towns
- 1 plus 2 CDPs
- ZIP codes
- 7
- Time zone
- Central
- FIPS code
- 48171
Cities and towns in Gillespie County
Gillespie County has 1 incorporated place. Populations count the people living inside Gillespie County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Fredericksburg (county seat) | City | 11,893 |
Unincorporated communities (CDPs)
Census-designated places are communities without their own city government; the county provides their services.
| Community | Population | Also in |
|---|---|---|
| Harper | 1,214 | |
| Stonewall | 295 |
ZIP codes in Gillespie County
7 ZIP codes reach into Gillespie County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 78028 also Kerr County
- 78058 also Kerr and Real counties
- 78618 also Mason County
- 78624 also Kendall County
- 78631 also Kimble and Kerr counties
- 78671
- 78675
Population of Gillespie County, 2020–2025
Gillespie County grew by 1,781 people (+6.7%) between April 2020 and July 2025: 736 more deaths than births and a net gain of 2,571 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 26,768 |
| 2021 | 27,315 |
| 2022 | 27,540 |
| 2023 | 27,766 |
| 2024 | 28,126 |
| 2025 | 28,527 |
Neighboring counties
- Kerr County southwest · 54,037 people
- Blanco County east · 13,581 people
- Llano County northeast · 23,353 people
- Mason County northwest · 3,990 people
- Kendall County southeast · 53,289 people
- Kimble County west · 4,438 people
Printable Gillespie County map
The PDF is a vector file with real text: it prints sharp on Letter paper and you can search it for a town. The PNG is 2400 pixels wide for slides and documents. Both are free to use with a credit to WhichCounty.
- PDF (Letter) (123 KB)
- PNG (2400 px) (51 KB)
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Sources
- Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files (1:500,000).
- Population: Census Bureau county and city estimates, Vintage 2025. CDP populations: American Community Survey 2020–2024.
- Places and ZIP codes: Census Bureau 2026 Gazetteer and 2020 ZIP Code Tabulation Area relationship files.
- County seat, founding year and name origin: Wikidata (CC0), checked against state sources.
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