Rock Island County is in Western Illinois. Of the 102 counties in the Prairie State, Rock Island County ranks 62nd in terms of size (451 square miles). Recent listings of recreational land for sale in Rock Island County, Illinois, totals about 1,000 acres and a combined market value of approximately $8 million. By overall acreage, undeveloped land is the most common type of land for sale in Rock Island County. The average price of recreational acreage for sale in Rock Island County was $2 million. Browse all recreational property for sale in Illinois to find the recreational tract that suits your lifestyle needs, from hunting and fishing properties for the outdoor enthusiast to undeveloped acreage ready for future residential-property development.