The Quad Cities is a region of five cities (originally Tri-Cities, later four; see § History) in the U.S. states of Iowa and Illinois: Davenport and Bettendorf (the fifth to be included) in southeastern Iowa, and Rock Island, Moline, and East Moline (the fourth to be included) in northwestern Illinois. These cities are the center of the Quad Cities metropolitan area, a region within the Mississippi River Valley, which as of 2023, had a population estimate of 467,817 and a Combined Statistical Area (CSA) population of 474,019, making it the 90th-largest CSA in the nation.
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👉 Quad Cities in the context of Iowa
Iowa (/ˈaɪ.əwə/ EYE-ə-wə) is a state in the upper Midwestern region of the United States. It borders the Mississippi River to the east and the Missouri River and Big Sioux River to the west; Wisconsin to the northeast, Illinois to the east and southeast, Missouri to the south, Nebraska to the west, South Dakota to the northwest, and Minnesota to the north.
Iowa is the 26th largest in total area and the 31st most populous of the 50 U.S. states, with a population of 3.19 million. The state's capital, most populous city, and largest metropolitan area fully located within the state is Des Moines. A portion of the larger Omaha, Nebraska, metropolitan area extends into three counties of southwest Iowa. Other metropolitan statistical areas in Iowa include Iowa City, Cedar Rapids, Waterloo-Cedar Falls, Ames, Dubuque, Sioux City, and the Iowa portion of the Quad Cities. Iowa is home to 940 small towns, though its population is increasingly urbanized as small communities and rural areas decline in population.
In this Dossier
- ⭐ Core Definition: Quad Cities
- 👉 Quad Cities in the context of Iowa
- Quad Cities in the context of Quad Cities (disambiguation)
- Quad Cities in the context of Moline, Illinois
- Quad Cities in the context of Rock Island County, Illinois
- Quad Cities in the context of East Moline, Illinois
- Quad Cities in the context of Rock Island, Illinois
- Quad Cities in the context of Davenport, Iowa
- Quad Cities in the context of Bettendorf, Iowa
Quad Cities in the context of Quad Cities (disambiguation)
The Quad Cities is a region of cities on the border of the U.S. states of Iowa and Illinois.
Quad Cities in the context of Moline, Illinois
Moline (/moʊˈliːn/ moh-LEEN) is a city in Rock Island County, Illinois, United States. With a population of 42,985 in the 2020 census, it is the largest city in Rock Island County and the ninth-most populous in Illinois outside the Chicago metropolitan area. Moline is one of the Quad Cities at the confluence of the Rock and Mississippi rivers, along with neighboring East Moline and Rock Island in Illinois and the cities of Davenport and Bettendorf in Iowa. The Quad Cities metropolitan area had a population of approximately 380,000 as of 2023.
Moline was established in 1843. The name derives from the French moulin meaning "mill [town]". The corporate headquarters of Deere & Company is located in Moline, as was Montgomery Elevator; its acquirer Kone has its U.S. division headquartered in Moline. Quad Cities International Airport, Black Hawk College, and the Quad Cities campus of Western Illinois University-Quad Cities are located in Moline. It is a retail hub for the Illinois Quad Cities, as South Park Mall and numerous big-box shopping plazas are located in the city. Moline's downtown serves as one of the civic and recreational hubs of the region as many events take place at the 12,000-seat Vibrant Arena at The MARK and at John Deere Commons.
Quad Cities in the context of Rock Island County, Illinois
Rock Island County is a county located in the U.S. state of Illinois, bounded on the west by the Mississippi River. According to the 2020 census, it had a population of 144,672. Its county seat is Rock Island; its largest city is neighboring Moline. Rock Island County is one of the four counties that make up the Davenport-Moline-Rock Island, IA-IL Metropolitan Statistical Area.
Quad Cities in the context of East Moline, Illinois
East Moline is a city in Rock Island County, Illinois, United States. The population was 21,374 at the 2020 census. East Moline was incorporated in April 1907. It is one of the five Quad Cities at the confluence of the Rock and Mississippi rivers, along with neighboring Moline and Rock Island in Illinois and Davenport and Bettendorf in Iowa.
Quad Cities in the context of Rock Island, Illinois
Rock Island is a city in Rock Island County, Illinois, United States, and its county seat. The population was 37,108 at the 2020 census. Located at the confluence of the Rock and Mississippi rivers, it is one of the Quad Cities along with neighboring Moline and East Moline in Illinois and the cities of Davenport and Bettendorf in Iowa. The Quad Cities metropolitan area had a population of 384,324 in 2020.
The city is home to Rock Island Arsenal, the largest government-owned weapons manufacturing arsenal in the United States, which employs 6,000 people. The original Rock Island, from which the city name is derived, is now called Arsenal Island.
Quad Cities in the context of Davenport, Iowa
Davenport (US: /ˈdævənpɔːrt/ DA-vən-port) is a city in Scott County, Iowa, United States, and its county seat. It is situated along the Mississippi River on the eastern border of the state. Davenport had a population of 101,724 as of the 2020 census, making it Iowa's third-most populous city, after Des Moines and Cedar Rapids. Together with Bettendorf, Iowa; Rock Island, Illinois; Moline, Illinois; and East Moline, Illinois, Davenport is one of the five Quad Cities in Iowa and Illinois. It is the largest city in the Quad Cities area, which has a metropolitan area population of 384,324 and a combined statistical area population of 474,019.
Davenport was founded on May 14, 1836, by Antoine Le Claire and named for his friend, George Davenport. From 1860 until 1980, Davenport enjoyed a long period of industrial and population growth, averaging yearly increases of about 760 people. Over that period, Davenport industries were diverse, from manufacturing locomotives, a major meat-packing plant, a Caterpillar loader plant, a historic movie-projector plant, to car and truck wheel manufacture. These and other industries left, and since 1980, population growth has been flat, hovering around 100,000 over the past 40 years.
Quad Cities in the context of Bettendorf, Iowa
Bettendorf is a city in Scott County, Iowa, United States. The population was 39,102 at the 2020 census. Bettendorf is one of the five cities that comprise the Quad Cities region along the Mississippi River. It is located adjacent to Davenport, Iowa, and across the river from Moline, East Moline, and Rock Island in Illinois. The Quad Cities metropolitan area had a population of 384,324 as of the 2020 census.