Rock Island, Illinois, US is located in Rock Island County along the Mississippi River. It is one of the Quad Cities, along with Davenport, Bettendorf, and Moline. The city was founded in 1835 and was a key military and commercial center during the 19th century, with the Rock Island Arsenal, a major US Army installation, playing a significant role in its growth. A notable landmark is the Rock Island County Asylum, also known as the "Old Main," which was built in 1877 and is listed on the National Register of Historic Places.
Dollar Tree takes the top spot among Dollar Stores and Deep Discount Stores in Rock Island, Illinois with 4 locations as of April 12, 2024. Dollar General is in second place with 2 locations.