San Fernando is a census-designated place (CDP) in Starr County, Texas, United States.
As of the 2020 census, San Fernando had a population of 49.
San Fernando is located at (26.403308, -98.835072).
San Fernando 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)