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, 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.
The Quad Cities is located at the confluence of the Rock and Mississippi rivers, approximately 140 miles (230 km) west of Chicago, and form the largest metropolitan area along the Mississippi River between Minneapolis–Saint Paul and the St. Louis metropolitan area. Interstate 80 crosses the Mississippi River here. The Quad Cities area is distinctive because the Mississippi River flows from east to west as it passes through the heart of the area; the Iowa cities of Davenport and Bettendorf are located due north of Rock Island and Moline, respectively.
The Quad Cities area is one where the telephone companies cooperate with regional phone calls. Iowa and Illinois have different area codes (563 and 309 respectively), yet most calls originating and terminating within the core urban area are placed without long-distance charges by dialing just a 7-digit number. This helps the bi-state area promote itself as a single community, “joined by a river.”
The Quad Cities Metropolitan Area consists of three counties: Scott County in Iowa, and Rock Island County and Henry County in Illinois. The Quad City metro population is 382,268. The Quad Cities Metropolitan Area is also considered part of the Great Lakes Megalopolis.
According to the 2010 United States Census estimate, the metropolitan area grew to 471,551 (error: Number quoted is from the 2010 CSA count). As of the 2000 census, a total of 96,495 households and 60,535 families resided in the area.
The racial makeup of the area is 90.6% White (410,861), 3.7% Black or African American (27,757), 0.6% American Indian and Alaskan Native (1,255), 1.0% Asian (6,624), 0.03% Pacific Islander (156), and 2.0% from two or more races (11,929). 7.1% of the population is Hispanic or Latino of any race (37,070). The predominant ethnicities in the Quad Cities are of northern European descent, including German, Irish, and English, as well Scandinavian (Mostly Swedish and Norwegian) and Dutch. The primary minority groups in the area are African-Americans, which in Davenport make up the third largest black population in the state of Iowa, a community dating back to the 1830s. Many African-American residents hail from (and have roots) in the Southern U.S., including east-central/northern Mississippi, Arkansas, western Alabama, and Missouri. The most significant Asian-American populations are South Asian and Vietnamese American.
According to resources, Christianity is the largest religion to be practiced in the area. However, the two states have a different population of Christian groups. In Davenport and Bettendorf, Catholics make up an 18.5% plurality, but Protestants with 15.1% Mainline and 11.6% Evangelical make up large minorities as well. The Black Protestants on the Iowa side comes in at 1.2%. On the Illinois side, between Rock Island, Moline, and East Moline, Catholicism is less prevalent at 12.4%, and at 12.5% Evangelical and 11.0% Mainline have smaller declines.
The Jewish population is about 500–600, which is down from about 1,800–2,000 in the 1950s and 1960s.
Quad Cities Illinois neighborhoods include: 10th and 11th Avenue, 15th/Avenue of Cities, 34th – 70th, 35th Ave, 39th Ave, 7th St, City Line Plaza to 7 St, Cloverleaf Village, Crestwood, Enterprise Lofts, Forest Hills, Greater Tartan Oaks, Green Acres, Homewood #1, Moline Bluffs, Mountain Hills, Old Towne, Overlook, Park Hill, Prospect Park, Stephans Park, Stephen’s Park, Stewartville, Uptown Moline, Villa Park, Wheelock / Veile, Willard / Wharton