Caldwell County, Texas
Updated · Data: U.S. Census Bureau
Caldwell County, Texas has its county seat in Lockhart and FIPS code 48055. About 47,184 people live here, the 74th most populated of the 254 Texas counties.
| County seat | Lockhart |
|---|---|
| FIPS code | 48055 (Texas 48 + county 055) · all Texas FIPS codes |
| Population | 47,184 (74th of 254) |
| Land area | 544.5 sq mi (235th largest; + 1.9 sq mi water) |
| People per sq mi | 86.7 |
| Time zone | Central time (America/Chicago) |
| Median home value | $215,600 |
| Median property tax paid | $2,871 a year (about 1.33% of the median home value: our calculation, not an official rate) |
| Official website | www.co.caldwell.tx.us |
What counties border Caldwell County?
Caldwell County shares a border with 6 counties:
What cities and towns are in Caldwell County?
6 places with 1,000+ people have residents here; together they hold about 48% of the county's population. The rest live in smaller communities and rural areas.
| Place | Population | Residents in this county |
|---|---|---|
| Lockhart | 14,708 | 100.0% |
| Luling | 5,486 | 100.0% |
| Uhland | 2,199 | 19.3% (also in other counties) |
| Mustang Ridge | 1,610 | 47.3% (also in other counties) |
| Martindale | 1,090 | 100.0% |
| Niederwald | 1,089 | 31.4% (also in other counties) |
CDP = census-designated place: a named community with no city government.
What ZIP codes are in Caldwell County?
14 ZIP code areas with residents touch Caldwell County; the ones marked * cross into another county.
Mailing names in Caldwell County that are not cities
These names appear in addresses here but are not Census places: Dale.
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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