Hays County, Texas
Updated · Data: U.S. Census Bureau
Hays County, Texas has its county seat in San Marcos and FIPS code 48209. About 256,429 people live here, the 21st most populated of the 254 Texas counties.
| County seat | San Marcos |
|---|---|
| FIPS code | 48209 (Texas 48 + county 209) · all Texas FIPS codes |
| Population | 256,429 (21st of 254) |
| Land area | 676.9 sq mi (220th largest; + 1.9 sq mi water) |
| People per sq mi | 378.8 |
| Time zone | Central time (America/Chicago) |
| Median home value | $371,400 |
| Median property tax paid | $6,420 a year (about 1.73% of the median home value: our calculation, not an official rate) |
| Official website | www.hayscountytx.gov |
What counties border Hays County?
Hays County shares a border with 5 counties:
What cities and towns are in Hays County?
9 places with 1,000+ people have residents here; together they hold about 62% of the county's population. The rest live in smaller communities and rural areas.
| Place | Population | Residents in this county |
|---|---|---|
| San Marcos | 68,920 | 100.0% |
| Kyle | 52,439 | 100.0% |
| Buda | 15,487 | 100.0% |
| Belterra (CDP) | 7,190 | 100.0% |
| Dripping Springs | 6,322 | 100.0% |
| Wimberley | 2,873 | 100.0% |
| Woodcreek | 2,375 | 100.0% |
| Uhland | 2,199 | 80.7% (also in other counties) |
| Niederwald | 1,089 | 68.6% (also in other counties) |
CDP = census-designated place: a named community with no city government.
What ZIP codes are in Hays County?
13 ZIP code areas with residents touch Hays 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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