A total of almost 100,000 acres were listed for sale in San Miguel County recently, representing a total value of around $166 million in San Miguel County ranches, farms, hunting land and other rural land and acreage for sale. San Miguel County ranks 16th out of 33 counties in New Mexico for the combined amount of land currently advertised for sale. Las Vegas featured the most land for sale. From an economic perspective, government and state-level services contribute most to San Miguel County's overall GDP. San Miguel County is one of the ten largest counties in New Mexico (4,741 square miles). It's located in the Northeast New Mexico region of the state.