Casas is a census-designated place (CDP) in Starr County, Texas, United States. This was a new CDP for the 2010 census. As of the 2020 census, Casas had a population of 29.
Casas is located at (26.475341, -98.933253).
The CDP is within the Roma Independent School District.
Casas first appeared as a census designated place in the 2010 U.S. census.