Rock Island, Illinois
Rock Island, Illinois | |
|---|---|
| Motto(s): Rock Solid, Rock Island | |
Location of Rock Island in Rock Island County, Illinois. | |
| Coordinates: 41°28′12″N 90°35′30″W / 41.47000°N 90.59167°W | |
| Country | United States |
| State | Illinois |
| County | Rock Island |
| Incorporated | 1841 |
| Area | |
| 17.07 sq mi (44.22 km2) | |
| • Land | 16.87 sq mi (43.70 km2) |
| • Water | 0.20 sq mi (0.53 km2) |
| Elevation | 623 ft (190 m) |
| Population (2020) | |
| 37,108 | |
| • Density | 2,199.51/sq mi (849.23/km2) |
| • Metro | 384,324 (US: 147th) |
| • CSA | 474,019 (US: 90th) |
| Time zone | UTC−6 (CST) |
| • Summer (DST) | UTC−5 (CDT) |
| ZIP Codes | 61201, 61204, 61207, 61264, 61299 |
| Area code | 309 |
| FIPS code | 17-65078 |
| GNIS feature ID | 2396400 |
| Website | rigov |
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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.