Casa Blanca is a census-designated place (CDP) in Starr County, Texas, United States. This was a new CDP for the 2010 census, with a population of 54.
Casa Blanca is located at (26.297641, -98.610251).
Casa Blanca first appeared as a census designated place in the 2010 U.S. census.
The CDP is within the Rio Grande City Grulla Independent School District (formerly Rio Grande City Consolidated Independent School District)