A total of around 2,000 acres were listed for sale in Illinois's Whiteside County recently, representing a total value of approximately $23 million in Whiteside County farms, rural land, hunting land and other land for sale. Whiteside County ranks 35th out of 102 counties in Illinois for the total acreage of land currently advertised for sale. Among cities in Whiteside County with farms and rural land for sale, Sterling featured the most land for sale. From an economic perspective, manufacturing and related services are the main sectors in Whiteside County. Whiteside County is the 27th biggest county (696 square miles) in Illinois. It's located in the Northern Illinois region of the state.