Jefferson County, Texas
Updated · Data: U.S. Census Bureau
Jefferson County, Texas has its county seat in Beaumont and FIPS code 48245. About 253,939 people live here, the 22nd most populated of the 254 Texas counties.
| County seat | Beaumont |
|---|---|
| FIPS code | 48245 (Texas 48 + county 245) · all Texas FIPS codes |
| Population | 253,939 (22nd of 254) |
| Land area | 876.7 sq mi (174th largest; + 236.0 sq mi water) |
| People per sq mi | 289.7 |
| Time zone | Central time (America/Chicago) |
| Median home value | $159,600 |
| Median property tax paid | $2,513 a year (about 1.57% of the median home value: our calculation, not an official rate) |
| Official website | jeffersoncountytx.gov |
What counties border Jefferson County?
Jefferson County shares a border with 5 counties:
- Cameron Parish, LA
- Chambers County
- Hardin County
- Liberty County
- Orange County
What cities and towns are in Jefferson County?
10 places with 1,000+ people have residents here; together they hold about 90% of the county's population. The rest live in smaller communities and rural areas.
| Place | Population | Residents in this county |
|---|---|---|
| Beaumont | 113,710 | 100.0% |
| Port Arthur | 55,779 | 100.0% |
| Nederland | 18,475 | 100.0% |
| Groves | 17,021 | 100.0% |
| Port Neches | 13,627 | 100.0% |
| Central Gardens (CDP) | 3,491 | 100.0% |
| Fannett (CDP) | 1,698 | 100.0% |
| Hamshire (CDP) | 1,460 | 100.0% |
| Bevil Oaks | 1,308 | 100.0% |
| Beauxart Gardens (CDP) | 1,073 | 100.0% |
CDP = census-designated place: a named community with no city government.
What ZIP codes are in Jefferson County?
18 ZIP code areas with residents touch Jefferson 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.
FAQ
Frequently asked questions
What is the county seat of Jefferson County, Texas?
What is the FIPS code for Jefferson County?
What counties border Jefferson County?
How many people live in Jefferson County?
What time zone is Jefferson County in?
What is the largest city in Jefferson County?
Free · No signup · Private
Find your county now
Use your location, a city or a ZIP code. The check runs on your device; your location is never sent or stored.