A combined around 1,000 acres were listed for sale in Nantucket County, Massachusetts, recently; the overall value of all Nantucket County land for sale was approximately $207 million. Nantucket County ranks 13th out of 14 counties in the state for the combined amount of land currently advertised for sale. Of all farms and rural real estate for sale in Nantucket County, Nantucket had the most land for sale. Nantucket County is Massachusetts's 13th largest county (303 square miles). It's located in the Southeast Massachusetts region of Massachusetts.