A total of nearly 1,000 acres were listed for sale in Ohio's Guernsey County recently, representing a total value of almost $23 million in Guernsey County farms, ranches, and rural real estate for sale. Guernsey County ranks 47th out of 88 counties in the Buckeye State for the combined amount of land currently advertised for sale. Cambridge featured the most land for sale. Guernsey County is the 28th biggest county (528 square miles) in Ohio. It's located in the Southeast Ohio region of the state.