There was a combined almost $979 million of land for sale in Washington County recently on Land.com. The total size of all Washington County land and rural real estate for sale was nearly 5,000 acres. Washington County ranks first in the Beehive State for the combined amount of land currently advertised for sale. Hurricane featured the most land for sale. Based on its natural assets, Washington County's economy is dependent on tourism and recreation. Washington County is the 15th largest county (2,430 square miles) in Utah. It's located in the Southwest Utah region of the state.