|Doña Ana County New Mexico Cities/Towns - Anthony, Chaparral, Doña Ana, Hatch, Las Cruces (County Seat), Mesilla, Mesquite, Radium Springs, Rincon, Salem, Santa Teresa, Sunland Park, Vado, White Sands
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Doña Ana County is a county located in the U.S. state of New Mexico. As of 2016, the population was 214,207. Its county seat is Las Cruces.
Founded in 1852.