The value of all farms, ranches, hunting land and other land for sale in Los Alamos County recently was approximately $17 million, representing a combined 10 acres of land for sale in Los Alamos County. Los Alamos County ranks 30th out of 33 counties in the Land of Enchantment for the combined amount of land currently advertised for sale. Of all locations in Los Alamos County with farms and ranches for sale, Los Alamos featured the most land for sale. Los Alamos County is the 33rd largest county (109 square miles) in New Mexico. It's located in the North Central New Mexico region of the state.