There was a total of approximately $210 million of land and rural real estate for sale in Columbia County, New York, recently on Land.com. The total size of all Columbia County farms and rural real estate for sale was 6,000 acres. Columbia County ranks 21st in the Empire State for the total number of acres of land currently advertised for sale. Of all locations in Columbia County with land and rural real estate for sale, Hudson featured the most land for sale. Based on its natural assets, tourism and recreation contribute significant revenue toward Columbia County's overall GDP. Columbia County is the 38th largest county (648 square miles) in New York. It's located in the Southern New York region of the state.