Gaines County, Texas
Updated · Data: U.S. Census Bureau
Gaines County, Texas has its county seat in Seminole and FIPS code 48165. About 21,904 people live here, the 110th most populated of the 254 Texas counties.
| County seat | Seminole |
|---|---|
| FIPS code | 48165 (Texas 48 + county 165) · all Texas FIPS codes |
| Population | 21,904 (110th of 254) |
| Land area | 1,502.4 sq mi (19th largest; + 0.5 sq mi water) |
| People per sq mi | 14.6 |
| Time zone | Central time (America/Chicago) |
| Median home value | $185,300 |
| Median property tax paid | $2,721 a year (about 1.47% of the median home value: our calculation, not an official rate) |
| Official website | www.co.gaines.tx.us |
What counties border Gaines County?
Gaines County shares a border with 6 counties:
What cities and towns are in Gaines County?
2 places with 1,000+ people have residents here; together they hold about 45% of the county's population. The rest live in smaller communities and rural areas.
| Place | Population | Residents in this county |
|---|---|---|
| Seminole | 7,097 | 100.0% |
| Seagraves | 2,842 | 100.0% |
CDP = census-designated place: a named community with no city government.
What ZIP codes are in Gaines County?
5 ZIP code areas with residents touch Gaines 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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