Davenport-Moline, IA-IL Combined Statistical Area
| Quad Cities | |
|---|---|
| Quad Cities | |
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| Coordinates: 41°31′00″N 90°32′00″W / 41.516666666667°N 90.533333333333°W | |
| Country | United States |
| State(s) | |
| Largest city | Davenport, Iowa |
| Other cities | |
| Area | |
| • Total | 170 sq mi (400 km2) |
| Highest elevation | 850 ft (259 m) |
| Lowest elevation | 590 ft (180 m) |
| Population | |
| • Total | 383,681 |
| • Rank | 136th in the U.S. |
| • Density | 1,600/sq mi (618/km2) |
The Quad Cities is a region of four counties in northwest Illinois and Southeastern Iowa. The urban core consists of four principal cities: Davenport and Bettendorf in Iowa, and Rock Island and Moline in Illinois. These cities are the center of the Quad Cities Metropolitan Area, which as of 2013 had a population estimate of 383,781 and a CSA (Combined Statistical Area) population of 474,937, making it the 90th largest CSA in the nation.
Before European settlers came to inhabit the Quad Cities, the confluence of rivers had attracted many varying cultures of indigenous peoples, who used the waterways and riverbanks for their settlements for thousands of years. At the time of European encounter, it was a home and principal trading place of the Sauk and Fox tribes of Native Americans. Saukenuk was the principal village of the Sauk tribe and birthplace of its 19th-century war chief, Black Hawk. In 1832, Sauk chief Keokuk and General Winfield Scott signed a treaty in Davenport after the US defeated the Sauk and their allies in the Black Hawk War. The treaty resulted in the Native Americans ceding six million acres (24,000 km²) of land to the United States in exchange for a much smaller reservation elsewhere. Black Hawk State Historic Site in Rock Island preserves part of historic Saukenuk and is listed on the National Register of Historic Places.
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