THE GALVESTON COUNTY LAND BRIEF
Land in the
Northern Humid Gulf Coastal Prairies setting.
Galveston County has 379.4 square miles of land in Texas. 3 mapped landscape regions meet across Galveston County: Northern Humid Gulf Coastal Prairies, Mid-Coast Barrier Islands and Coastal Marshes, Texas-Louisiana Coastal Marshes.
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
Galveston County intersects 3 mapped regional units. The largest mapped shares are:
- Northern Humid Gulf Coastal Prairies67.8%
- Mid-Coast Barrier Islands and Coastal Marshes27.6%
- Texas-Louisiana Coastal Marshes4.6%
Finding your parcel within Galveston County
The atlas lists 16 cities, towns, townships, and Census communities associated with Galveston County, including Texas City, Hitchcock, League City. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Galveston County by land and water
The Census records 494.5 square miles of water within Galveston County, or 56.6% of its total area. That share is close to Galveston County’s 56.6%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Galveston County has 797.1 times the land area of nearby Tiki Island village (0.48 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Brazoria County, Chambers County, Harris County within Texas. A tract near one of these lines should be matched to the county identifier on its own records.

