The value of land for sale in Perry County, Illinois, recently on Land.com was nearly $2 million. This represents almost 1,000 acres of farms and rural land for sale in Perry County. Perry County ranks 96th out of 102 counties in the Prairie State for the total number of acres of land currently advertised for sale. Of all locations in Perry County with land for sale, Du Quoin had the most land for sale. From an economic perspective, government and state-level services contribute most to Perry County's overall GDP. Perry County is Illinois's 63rd largest county (446 square miles). It's located in the Southern Illinois region of the state.