There was a combined nearly $19 million of farms, rural land, hunting land and other land for sale in Carroll County recently on Land.com. The total of all Carroll County land and rural real estate for sale was almost 1,000 acres. Carroll County ranks 82nd out of 92 counties in the Hoosier?State for the total acreage of land currently advertised for sale. Delphi featured the most land for sale. Manufacturing and related services are the largest economic sectors in Carroll County. Carroll County is the 63rd largest county (375 square miles) in Indiana. It's located in the West Indiana region of Indiana.