The value of all farms, hunting land and other rural land and acreage for sale in Washington County recently was around $72 million, representing a combined 4,816 acres of land for sale in Washington County. Washington County ranks 31st out of 62 counties in the Empire State for the total number of acres of land currently advertised for sale. Among cities in Washington County with land for sale, Whitehall featured the most land for sale. From an economic perspective, government and state-level services contribute most to Washington County's overall GDP. Washington County is the 27th largest county (845 square miles) in New York. It's located in the Central New York region of the state.