A combined nearly 3,000 acres were listed for sale in Illinois's Union County recently; the value of all Union County farms and rural land for sale was $14 million. Union County ranks 49th out of 102 counties in the Prairie State for the total acreage of land currently advertised for sale. There were three properties listed as sold in Union County through the Land Network Comparable Sales Program. This represented a total value of $1,635,000. Among cities in Union County with land and rural real estate for sale, Anna had the most land for sale. From an economic perspective, government and state-level services contribute most to Union County's overall GDP. Union County is Illinois's 71st largest county (422 square miles). It's located in the Southern Illinois region of the state.