El Chaparral, TexasEl Chaparral is a census-designated place in Starr County, Texas, United States. It was a new CDP for the 2010 census, with a population of 464. It was formed, along with Santa Rosa CDP from the old Santa Cruz CDP.GeographyEl Chaparral is located at .DemographicsEl Chaparral was one of two CDPs formed out of the deleted Santa Cruz CDP prior to the 2010 U.S. census.2020 censusEducationThe CDP is within the Rio Grande City Grulla Independent School District