There was a total of $7 million of farmsand rural real estate for sale in Rush County recently on Land.com. The total of all Rush County land and rural real estate for sale was almost 1,000 acres. Rush County ranks 89th out of 92 counties in the Hoosier?State for the combined amount of land currently advertised for sale. Rushville had the most land for sale. Rush County is the 41st largest county (408 square miles) in Indiana. It's located in the East Indiana region of the state.