A combined almost 1,000 acres were listed for sale in Preble County, Ohio, recently; the value of all Preble County farms, ranches, hunting land and other land for sale was approximately $16 million. Preble County ranks 63rd in the Buckeye State for the total number of acres of land currently advertised for sale. Of all land for sale in Preble County, Eaton featured the most land for sale. Manufacturing and related services are the largest economic sectors in Preble County. Preble County is the 53rd biggest county (426 square miles) in Ohio. It's located in the Southwest Ohio region of the state.