San Patricio County, Texas
Updated · Data: U.S. Census Bureau
San Patricio County, Texas has its county seat in Sinton and FIPS code 48409. About 69,519 people live here, the 53rd most populated of the 254 Texas counties.
| County seat | Sinton |
|---|---|
| FIPS code | 48409 (Texas 48 + county 409) · all Texas FIPS codes |
| Population | 69,519 (53rd of 254) |
| Land area | 693.3 sq mi (219th largest; + 14.5 sq mi water) |
| People per sq mi | 100.3 |
| Time zone | Central time (America/Chicago) |
| Median home value | $180,400 |
| Median property tax paid | $2,754 a year (about 1.53% of the median home value: our calculation, not an official rate) |
| Official website | www.sanpatriciocountytx.gov |
What counties border San Patricio County?
San Patricio County shares a border with 6 counties:
What cities and towns are in San Patricio County?
11 places with 1,000+ people have residents here; together they hold about 84% of the county's population. The rest live in smaller communities and rural areas.
| Place | Population | Residents in this county |
|---|---|---|
| Portland | 20,369 | 100.0% |
| Ingleside | 9,861 | 100.0% |
| Aransas Pass | 8,807 | 87.0% (also in other counties) |
| Sinton | 5,513 | 100.0% |
| Mathis | 4,322 | 100.0% |
| Taft | 2,847 | 100.0% |
| Odem | 2,128 | 100.0% |
| Gregory | 2,081 | 100.0% |
| Taft Southwest (CDP) | 1,399 | 100.0% |
| St. Paul (CDP) | 1,165 | 100.0% |
| Lakeshore Gardens-Hidden Acres (CDP) | 1,020 | 100.0% |
CDP = census-designated place: a named community with no city government.
What ZIP codes are in San Patricio County?
9 ZIP code areas with residents touch San Patricio 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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