It comes to the cities of Davenport and Bettendorf in Iowa, as well as Rock Island, Moline and East Molin in Illinois. It is a whole area at the conjunction of Iowa and Illinois comprising four major cities along the river. This name ‘Quad Cities’ is, as a matter of fact, not the real name of a city. The Quad Cities casinos in this list are only three, but we also included a couple of other top gambling sites that are located within about an hour’s drive distance.