Rock Island County is in Western Illinois. Of the 102 counties in the Land of Lincoln, 288,824-acre Rock Island County ranks 62nd by size. Recent Land Network data records about 1,000 acres of recreational land and property for sale in Illinois's Rock Island County, which is valued at a combined $9 million. The average price of recreational acreage for sale in Rock Island County was $1 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.