Hudspeth County is a county located in the U.S. state of Texas. As of the 2020 census, the population was 3,432. Its county seat is Sierra Blanca, and the largest community is Fort Hancock. The county is named for Claude Benton Hudspeth, a state senator and United States Representative from El Paso. It is northeast of the Mexico–U.S. border. Hudspeth County is included in the El Paso Metropolitan Statistical Area.