Sierra County is a county located in the U.S. state of New Mexico. As of the 2020 Census, the population was 11,576. Its county seat is Truth or Consequences. According to the U.S. Census Bureau, the county has a total area of 4,236 square miles, of which 4,179 square miles is land and 57 square miles is water.
Country: United States
State: New Mexico
Founded: 1884
Named for: the Black Range (Spanish: Sierra Diablo)
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