There was a total of approximately $8 million of farmsand rural real estate for sale in Piatt County recently on Land.com. The total size of all Piatt County farms and rural real estate for sale was around 1,000 acres. Piatt County ranks 73rd out of 102 counties in Illinois for the total number of acres of land currently advertised for sale. Of all farms, hunting land and other rural land and acreage for sale in Piatt County, Mansfield featured the most land for sale. Its economy is defined as agricultural, with 426 farms recorded in the county during the most recent U.S. Census. Farming activities in Piatt County generate annual revenues of $18 million, most of which is from crops. Piatt County is the 67th biggest county (439 square miles) in Illinois. It's located in the Central Illinois region of the state.