THE STARR COUNTY LAND BRIEF
Land in the
Texas-Tamaulipan Thornscrub setting.
Starr County has 1,223.2 square miles of land in Texas. 3 mapped landscape regions meet across Starr County: Texas-Tamaulipan Thornscrub, Coastal Sand Plain, Rio Grande Floodplain and Terraces.
Rolling to dissected plains support the thorny brush landscape associated with South Texas. Mesquite and other shrubs are prominent within this warm transition between grassland and desert regions.
Regional context: Southern Texas Plains ↗ · Regional mapping across the county footprint
Where the landscape changes
Starr County intersects 3 mapped regional units. The largest mapped shares are:
- Texas-Tamaulipan Thornscrub86.8%
- Coastal Sand Plain7.3%
- Rio Grande Floodplain and Terraces5.8%
Western Gulf Coastal Plain in Starr County
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.
Read the regional source ↗Finding your parcel within Starr County
The atlas lists 115 cities, towns, townships, and Census communities associated with Starr County, including Rio Grande City, Roma, Delmita. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Starr County by land and water
The Census records 5.94 square miles of water within Starr County, or 0.5% of its total area. That share is close to Starr County’s 0.5%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Starr County has 6,757.9 times the land area of nearby El Brazil CDP (0.18 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Brooks County, Hidalgo County, Jim Hogg County, Zapata County within Texas. A tract near one of these lines should be matched to the county identifier on its own records.

