Sierra Blanca, Texas

Sierra Blanca, Texas
Sierra Blanca with "SB" on mountain in the background
Coordinates: 31°11′00″N 105°20′22″W / 31.18333°N 105.33944°W / 31.18333; -105.33944
CountryUnited States
StateTexas
CountyHudspeth
Area
  Total
4.8 sq mi (12.4 km2)
  Land4.7 sq mi (12.3 km2)
  Water0.04 sq mi (0.1 km2)
Elevation
4,479 ft (1,365 m)
Population
 (2020)
  Total
315
  Density66.2/sq mi (25.6/km2)
Time zoneUTC-7 (Mountain (MST))
  Summer (DST)UTC-6 (MDT)
ZIP code
79851
Area code915
FIPS code48-67772
GNIS feature ID2408735

Sierra Blanca is an unincorporated area in Hudspeth County, Texas, United States. It is also the county seat of the county and the namesake of a census-designated place (CDP) in which it is located. The town is part of the Trans-Pecos region of far West Texas, is located northeast of the Mexican border and is within the Mountain Time Zone. As of the 2020 census, its population was 315.

The town accommodates travelers between Van Horn and El Paso along Interstate 10, which is the main route that connects Texas from west to southeast. The town was named for the nearby Sierra Blanca Mountain, which was in turn named for the white poppies that grew there (sierra blanca is Spanish for "white mountain"). The letters "SB" can be seen on a nearby mountain from Interstate 10.