A total of approximately 3,000 acres were listed for sale in Sullivan County recently, representing a total value of approximately $102 million in Sullivan County farms, rural land, hunting land and other land for sale. Sullivan County ranks 10th in the state for the combined amount of land currently advertised for sale. Of all locations in Sullivan County with farms and rural land for sale, Claremont featured the most land for sale. Sullivan County is one of the ten largest counties in New Hampshire (552 square miles). It's located in the Central New Hampshire region of the state.