THE PORT ISABEL LAND BRIEF
Land in the
Laguna Madre Barrier Islands and Coastal Marshes setting.
Port Isabel city has 18.3 square miles of land in Cameron County. Its Census reference point is in Laguna Madre Barrier Islands and Coastal Marshes, within Western Gulf Coastal Plain.
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 ↗ · Classification at the Census reference point
Port Isabel and Cameron County
Port Isabel is associated with Cameron County in the Census boundary data. Start with the parcel’s tax bill to match the property to that jurisdiction, then confirm which government handles its land use.
Port Isabel by land and water
The Census records 14.3 square miles of water within Port Isabel, or 43.8% of its total area. It is 13.5 percentage points higher than the 30.3% recorded for Cameron County. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Port Isabel city has 3.8 times the land area of nearby Laguna Vista town (4.83 square miles). These areas describe boundaries, not comparable property prices.