THE JEFFERSON COUNTY LAND BRIEF
Land in the
Northern Humid Gulf Coastal Prairies setting.
Jefferson County has 876.7 square miles of land in Texas. 4 mapped landscape regions meet across Jefferson County: Northern Humid Gulf Coastal Prairies, Texas-Louisiana Coastal Marshes, Flatwoods, among others.
Low coastal plains extend along the western Gulf, contrasting with more irregular inland country. Grassland was the principal natural cover, with river corridors and coastal features adding local variation.
Regional context: Western Gulf Coastal Plain ↗ · Regional mapping across the county footprint
Where the landscape changes
Jefferson County intersects 4 mapped regional units. The largest mapped shares are:
- Northern Humid Gulf Coastal Prairies62.8%
- Texas-Louisiana Coastal Marshes34.1%
- Flatwoods2.2%
- Floodplains and Low Terraces0.9%
South Central Plains in Jefferson County
The Piney Woods occupy irregular plains at the western edge of the southern forest belt. Pine and hardwood landscapes alternate with wider river corridors such as the Red River valley.
Read the regional source ↗Finding your parcel within Jefferson County
The atlas lists 13 cities, towns, townships, and Census communities associated with Jefferson County, including Beaumont, Port Arthur, Fannett. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Jefferson County by land and water
The Census records 236 square miles of water within Jefferson County, or 21.2% of its total area. That share is close to Jefferson County’s 21.2%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Jefferson County has 774.5 times the land area of nearby Taylor Landing city (1.13 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Chambers County, Hardin County, Liberty County, Orange County within Texas. A tract near one of these lines should be matched to the county identifier on its own records.

