The four primary cities commonly referred to as the Quad Cities are Davenport, Iowa; Bettendorf, Iowa; Moline, Illinois; and Rock Island, Illinois. This bi-state metropolitan area spans both Iowa and Illinois, situated along the Mississippi River.
Key Cities of the Quad Cities Region
While the "Quad Cities" name implies four, the region is a dynamic area with several interconnected communities. The most recognized four cities that define the Quad Cities are:
| City | State |
|---|---|
| Davenport | Iowa |
| Bettendorf | Iowa |
| Moline | Illinois |
| Rock Island | Illinois |
Understanding the Quad Cities Area
The Quad Cities region is known for its diverse economy, rich history, and vibrant culture. Davenport, Iowa, stands as the largest city within this metropolitan area. While the name historically referred to Davenport, Moline, Rock Island, and East Moline, the significant growth and development of Bettendorf, Iowa, have led to its inclusion as one of the four primary cities in common modern usage.
Other Significant Cities:
- East Moline, Illinois: While often historically included in the "Quad Cities" designation, and still a vital part of the metropolitan area, Bettendorf is now frequently considered the "fourth" primary city alongside Davenport, Moline, and Rock Island due to its growth and prominence.
The total area of the Quad Cities metropolitan region is approximately 170 square miles (400 square kilometers), encompassing these major cities and surrounding communities.
