San Augustine County, Texas
County seat: San Augustine · Population 7,722 (2025) · 531 sq mi
San Augustine County is the 178th most populous of Texas's 254 counties, with 7,722 people (2025 estimate). Its county seat is San Augustine. It is part of the Southeast region, one of the 12 Texas Comptroller economic regions. The map shows its 2 cities and towns and the 5 neighboring counties.
San Augustine County facts
- County seat
- San Augustine
- Population (2025 estimate)
- 7,722 −2.5% since 2020
- Land area
- 531 sq mi 236th largest of 254
- Water area
- 62 sq mi
- Population density
- 15 per sq mi
- Established
- 1836
- Named after
- Augustine of Hippo Christian theologian, philosopher, and saint (354–430)
- Largest city
- San Augustine 1,839
- Median household income
- $50,408
- Cities and towns
- 2
- ZIP codes
- 4
- Time zone
- Central
- FIPS code
- 48405
Cities and towns in San Augustine County
San Augustine County has 2 incorporated cities, towns and villages. Populations count the people living inside San Augustine County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| San Augustine (county seat) | City | 1,839 | |
| Broaddus | Town | 178 |
ZIP codes in San Augustine County
4 ZIP codes reach into San Augustine County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 75929
- 75930 also Sabine County
- 75935 also Shelby County
- 75972 also Sabine and Shelby counties
Population of San Augustine County, 2020–2025
San Augustine County shrank by 199 people (−2.5%) between April 2020 and July 2025: 441 more deaths than births and a net gain of 248 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 7,923 |
| 2021 | 7,908 |
| 2022 | 7,880 |
| 2023 | 7,865 |
| 2024 | 7,777 |
| 2025 | 7,722 |
Neighboring counties
- Nacogdoches County northwest · 66,035 people
- Sabine County east · 10,012 people
- Shelby County north · 24,286 people
- Angelina County west · 88,154 people
- Jasper County south · 33,075 people
Printable San Augustine 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) (149 KB)
- PNG (2400 px) (98 KB)
Paste this code to embed the map on your site:
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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