San Augustine County, Texas
Updated · Data: U.S. Census Bureau
San Augustine County, Texas has its county seat in San Augustine and FIPS code 48405. About 7,889 people live here, the 177th most populated of the 254 Texas counties.
| County seat | San Augustine |
|---|---|
| FIPS code | 48405 (Texas 48 + county 405) · all Texas FIPS codes |
| Population | 7,889 (177th of 254) |
| Land area | 530.7 sq mi (236th largest; + 61.6 sq mi water) |
| People per sq mi | 14.9 |
| Time zone | Central time (America/Chicago) |
| Median home value | $83,500 |
| Median property tax paid | $681 a year (about 0.82% of the median home value: our calculation, not an official rate) |
| Official website | www.co.san-augustine.tx.us |
What counties border San Augustine County?
San Augustine County shares a border with 5 counties:
What cities and towns are in San Augustine County?
1 places with 1,000+ people have residents here; together they hold about 27% of the county's population. The rest live in smaller communities and rural areas.
| Place | Population | Residents in this county |
|---|---|---|
| San Augustine | 2,139 | 100.0% |
CDP = census-designated place: a named community with no city government.
What ZIP codes are in San Augustine County?
4 ZIP code areas with residents touch San Augustine County; the ones marked * cross into another county.
Check an exact address with the address lookup, look up a ZIP code, or see how to confirm your county with official records.
Sources: Census TIGER/Line 2024 (boundary, area, neighbors); ACS 2019-2023 5-year (population, home value, taxes paid); Wikidata, CC0 (seat, website); timezone-boundary-builder (time zone). Data as of November 1, 2026. Not affiliated with any government agency.
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