Land for sale in Washington County, Kansas, recently totaled $2 million and nearly 2,000 acres. Washington County ranks 94th in Kansas for the combined amount of land currently advertised for sale. There were two properties listed as sold in Washington County through the Land Network Comparable Sales Program. This represented a total value of $1,700,000. Of all land and rural real estate for sale in Washington County, Clifton had the most land for sale. Washington County has a large agricultural economy, with 732 farms recorded in the county during the latest U.S. Census. Farming activities in Washington County generate annual revenues of $10 million, most of which is from crops. Washington County is the 30th largest county (898 square miles) in Kansas. It's located in the Tallgrass Prairie Kansas region of Kansas.