Land for sale in Washington County recently totaled around $4 million and 1,000 acres. Washington County ranks 93rd out of 105 counties in Kansas for the total acreage 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 $2,054,600. Of all land and rural real estate for sale in Washington County, Washington had the most land for sale. Its economy is defined as agricultural, with 732 farms recorded in the county during the most recent U.S. Census. Farming activities in Washington County generate annual revenues of $10 million, most of which is from crops. Washington County is Kansas's 30th biggest county (898 square miles). It's located in the Tallgrass Prairie Kansas region of Kansas.