THE CALHOUN COUNTY LAND BRIEF
Land in the
Mid-Coast Barrier Islands and Coastal Marshes setting.
Calhoun County has 506.9 square miles of land in Texas. 2 mapped landscape regions meet across Calhoun County: Mid-Coast Barrier Islands and Coastal Marshes, Northern Humid Gulf Coastal Prairies.
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
Calhoun County intersects 2 mapped regional units. The largest mapped shares are:
- Mid-Coast Barrier Islands and Coastal Marshes53%
- Northern Humid Gulf Coastal Prairies47%
Finding your parcel within Calhoun County
The atlas lists 6 cities, towns, townships, and Census communities associated with Calhoun County, including Port Lavaca, Port O'Connor, Point Comfort. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Calhoun County by land and water
The Census records 525.7 square miles of water within Calhoun County, or 50.9% of its total area. That share is close to Calhoun County’s 50.9%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Calhoun County has 496.5 times the land area of nearby Magnolia Beach CDP (1.02 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Aransas County, Jackson County, Matagorda County, Refugio County, Victoria County within Texas. A tract near one of these lines should be matched to the county identifier on its own records.

