The value of all land and rural real estate for sale in New York's Columbia County recently was nearly $241 million, representing a total of 5,680 acres of land for sale in Columbia County. Columbia County ranks 21st out of 62 counties in the state for the total number of acres of land currently advertised for sale. Among cities in Columbia County with farms, hunting land and other rural land and acreage for sale, Hudson had the most land for sale. Based on its natural assets, tourism and recreation are important sectors for the Columbia County economy. 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.