THE SAN CARLOS LAND BRIEF
Land in the
Lower Rio Grande Valley setting.
San Carlos CDP has 1.81 square miles of land in Hidalgo County. Its Census reference point is in Lower Rio Grande Valley, 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
San Carlos and Hidalgo County
San Carlos is associated with Hidalgo 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.
San Carlos by land and water
The Census records 0 square miles of water within San Carlos, or 0% of its total area. It is 0.7 percentage points lower than the 0.7% recorded for Hidalgo County. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, San Carlos CDP has 43.7% of the land area of nearby La Blanca CDP (4.13 square miles). These areas describe boundaries, not comparable property prices.

