There was a combined $6 million of farmsand rural real estate for sale in Ohio County recently on Land.com. The total size of all Ohio County land and rural real estate for sale was almost 1,000 acres. Ohio County ranks 90th out of 92 counties in the state for the total number of acres of land currently advertised for sale. Of all locations in Ohio County with land for sale, Rising Sun had the most land for sale. Ohio County is Indiana's 92nd largest county (87 square miles). It's located in the South Central Indiana region of Indiana.