A total of approximately 1,000 acres were listed for sale in New Mexico's Los Alamos County recently, representing a total value of nearly $15 million in Los Alamos County land for sale. Los Alamos County ranks 30th in New Mexico for the total acreage of land currently advertised for sale. Of all locations in Los Alamos County with land for sale, Los Alamos featured the most land for sale. Los Alamos County is New Mexico's 33rd biggest county (109 square miles). It's located in the North Central New Mexico region of New Mexico.