Quad Cities

Metropolitan Statistical Area in the United StatesQuad Cities, Iowa–Illinois Davenport–Moline–Rock Island, IA–ILMetropolitan Statistical AreaDavenportBettendorfRock IslandMolineMap of Davenport–Moline, IA–IL CSA City of Davenport, IA City of Bettendorf, IA City of Moline, IL City of Rock Island, IL Davenport–Moline–Rock Island, IA–IL MSA Muscatine, IA μSA Clinton, IA μSA Country United StatesState Iowa IllinoisLargest cityDavenport, IowaOther citiesMoline, IllinoisBettendorf, IowaRock Island, IllinoisEast Moline, IllinoisArea • Total170 sq mi (440 km2)Highest elevation850 ft (259 m)Lowest elevation590 ft (180 m)Population • Total467,817 (148th) • Rank148th in the U.S. • Density1,600/sq mi (618/km2)GDP • Total$25.774 billion (2022)Time zoneUTC-06:00 (CST) • Summer (DST)UTC-05:00 (CDT) The Quad Cities is a region of five cities in the U.S. states of Iowa and Illinois: Davenport and Bettendorf in southeastern Iowa, and Rock Island, Moline, and East Moline in northwestern Illinois. These cities are the center of the Quad Cities metropolitan area, a region within the Mississippi River Valley, which as of 2025, had a population estimate of 380,452 and a Co