The value of all farms and rural land for sale in Washington County recently was around $82 million, representing a total of 1,034 acres of land for sale in Washington County. Washington County ranks 27th out of 72 counties in the Badger State for the combined amount of land currently advertised for sale. Of all land for sale in Washington County, West Bend had the most land for sale. From an economic perspective, manufacturing and related services are the main sectors in Washington County. Washington County is the 68th biggest county (435 square miles) in Wisconsin. It's located in the Southeast Wisconsin region of Wisconsin.