There was a combined almost $6 million of farms, rural land, hunting land and other land for sale in New Jersey's Hudson County recently on Land.com. The total size of all Hudson County farms and rural real estate for sale was around 1,000 acres. Hudson County ranks 21st in the state for the combined amount of land currently advertised for sale. Of all farms and rural real estate for sale in Hudson County, Jersey City featured the most land for sale. Hudson County is New Jersey's 21st biggest county (62 square miles). It's located in the North New Jersey region of New Jersey.