Land for sale in Harding County, New Mexico, recently totaled $1 million and nearly 1,000 acres. Harding County ranks 33rd out of 33 counties in the Land of Enchantment for the combined amount of land currently advertised for sale. Roy featured the most land for sale. Harding County has a large agricultural economy, with 202 farms recorded in the county during the latest U.S. Census. Farming activities in Harding County generate annual revenues of $661,000, the majority of which comes from livestock products. Harding County is the 27th biggest county (2,125 square miles) in New Mexico. It's located in the Northeast New Mexico region of the state.