Rock Island, Illinois

Rock Island, Illinois
City
Downtown Rock Island Rock Island Arsenal Black Hawk Site Lock and Dam No. 15 Centennial Bridge
Flag Seal Logo
Motto(s):  Rock Solid, Rock Island
Location of Rock Island in Rock Island County, Illinois.
Rock Island Show map of Illinois Rock Island Show map of the United States
Coordinates: 41°29′21″N 90°34′23″W / 41.48917°N 90.57306°W / 41.48917; -90.57306
Country	United States
State	Illinois
County	Rock Island
Incorporated	1841
Government
• Mayor	Mike Thoms
Area [1]
• City	17.07 sq mi (44.22 km2)
• Land	16.87 sq mi (43.70 km2)
• Water	0.20 sq mi (0.53 km2)
Population  (2020)
• City	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, 61264, 61299
Area code	309
FIPS code	17-65078
Interstate Spurs	I-280
Website	http://www.rigov.org/ http://www.rocksolidrockisland.com/

Rock Island is a city in and the county seat of Rock Island County, Illinois, United States.^[2] The population was 37,108 at the 2020 census.^[3] 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 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 US, which employs 6,000 people.^[4] The original Rock Island, from which the city name is derived, is now called Arsenal Island.^[5]