Community Note: The Quad Cities is a geographic region of the Mid-Mississippi Valley of the United States that includes several communities in the states of Iowa and Illinois. As of 2009, the population is 379,066 and consists of four counties: Scott County in Iowa and Henry, Mercer, and Rock Island counties in Illinois.[5][6]
The five most populous cities in the region are:
• Davenport, Iowa
• Moline, Illinois
• Rock Island, Illinois
• Bettendorf, Iowa
• East Moline, Illinois
The region has supported the Quad City Symphony Orchestra since 1916. There is also Ballet Quad Cities, the Knights Drum and Bugle Corps, and museums and concert venues as noted above. Bluebox Limited is a Bettendorf-based film production company. Historic buildings and sites listed on state and the National Register of Historic Places interpret the history of people's settlement and lives in the area. http://en.wikipedia.org/wiki/Quad_cities