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.

[1] Casa Blanca is located at 26°17′52″N 98°36′37″W / 26.29778°N 98.61028°W / 26.29778; -98.61028 (26.297641, -98.610251).

[2] Casa Blanca first appeared as a census designated place in the 2010 U.S.

[15] The CDP is within the Rio Grande City Grulla Independent School District (formerly Rio Grande City Consolidated Independent School District)[18]