Land for sale in Indiana's Warren County recently totaled approximately $14 million and around 1,000 acres. Warren County ranks 78th out of 92 counties in Indiana for the total acreage of land currently advertised for sale. Williamsport featured the most land for sale. Agriculture and farming drives the Warren County economy, with 413 farms recorded in the county during the U.S. Census in 2012. Farming activities in Warren County generate annual revenues of $9 million, most of which is from crops. Warren County is Indiana's 67th biggest county (366 square miles). It's located in the West Indiana region of the state.