Rafael Pena 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, Rafael Pena had a population of 16.
Rafael Pena is located at (26.300945, -98.640870). With a total area of 0.005 square miles, it is the smallest CDP in the United States.
Rafael Pena first appeared as a census designated place in the 2010 U.S. census.