Real Estate Market Data Rock Island

View Rock Island, Illinois Real Estate Market Information below for Rock Island zip code 61201. Standing as one of the Quad Cities, Rock Island is located in Illinois along the banks of the Mississippi River. Full of amenities, activities and varying real estate, there is something for everyone in Rock Island. The city is known for its low cost of living, and local schools have high graduation rates. If you're interested in Rock Island or the Quad Cities area, contact Mel Foster Co. for more information and a list of active Rock Island Homes for Sale in Illinois.