Quad Cities
Davenport–Moline–Rock Island Metropolitan Statistical Area
Map of Quad Cities
CountryUnited States
State(s) Iowa
Largest cityDavenport, Iowa
Other cities - Bettendorf, Iowa
 - Moline, Illinois
 - Rock Island, Illinois
 - East Moline, Illinois
 • Total2,314 sq mi (5,990 km2)
Highest elevation
850 ft (259 m)
Lowest elevation
590 ft (180 m)
 • Total379,172 (144th)
 • Rank144th in the U.S.

The Quad Cities metropolitan area, more formally known as the Davenport–Moline–Rock Island Metropolitan Statistical Area, is the metropolitan area associated with the Quad Cities in the U.S. states of Iowa and Illinois. The area consists of the cities of Davenport and Bettendorf in Iowa and Rock Island, Moline, and East Moline in Illinois, and their suburbs in northwest Illinois and southeast Iowa. The Quad Cities metropolitan area is also considered part of the Great Lakes Megalopolis, and is the largest metropolitan area along the Mississippi River in Iowa and between Minneapolis–Saint Paul and the St. Louis metropolitan area.[1]

The Davenport–Moline–Rock Island Metropolitan Statistical Area consists of four counties: Scott County in Iowa and Henry, Mercer, and Rock Island counties in Illinois. The MSA had an estimated population of 383,681 as of 2013, and the CSA had a population of 474,937, making it the 90th largest CSA in the nation.[2][3][4]


Largest municipalities

2020 rank City County (State) 2020 Census 2010 Census Change
1 Davenport Scott (Iowa) 101,724 99,685 +2.05%[5]
2 Moline Rock Island (Illinois) 42,985 43,483 −1.15%[6]
3 Bettendorf Scott (Iowa) 39,102 33,217 +17.72%[7]
4 Rock Island Rock Island (Illinois) 37,108 39,018 −4.90%[8]
5 East Moline Rock Island (Illinois) 21,374 21,302 +0.34%[9]

Places with 1,000 to 10,000 inhabitants

Places with fewer than 1,000 inhabitants

Unincorporated places


  1. ^ Great Lakes Megalopolis
  2. ^ List of Combined Statistical Areas
  3. ^ "Annual Estimates of the Population of Metropolitan and Micropolitan Statistical Areas: April 1, 2010 to July 1". 2013 Population Estimates. United States Census Bureau, Population Division. June 2012. Archived from the original (CSV) on April 27, 2012. Retrieved August 1, 2012.
  4. ^ Table of United States Metropolitan Statistical Areas
  5. ^ "City and Town Population Totals: 2010-2019".
  6. ^ "City and Town Population Totals: 2010-2019".
  7. ^ "City and Town Population Totals: 2010-2019".
  8. ^ "City and Town Population Totals: 2010-2019".
  9. ^ "City and Town Population Totals: 2010-2019".