The value of all ranches, farms, hunting land and other rural land and acreage for sale in Union County recently was almost $27 million, representing a combined 17,872 acres of land for sale in Union County. Union County ranks 30th out of 33 counties in the Land of Enchantment for the total number of acres of land currently advertised for sale. Of all locations in Union County with farms and ranches for sale, Sedan featured the most land for sale. Its economy is defined as agricultural, with 353 farms recorded in the county during the most recent U.S. Census. Farming activities in Union County generate annual revenues of $2 million, the majority of which comes from livestock products. Union County is New Mexico's 15th biggest county (3,831 square miles). It's located in the Northeast New Mexico region of New Mexico.