South Beloit, Illinois

South Beloit, Illinois
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Location of South Beloit in Winnebago County, Illinois
Coordinates: 42°28′52″N 89°00′34″W / 42.48111°N 89.00944°W / 42.48111; -89.00944
CountryUnited States
StateIllinois
CountyWinnebago
Area
 • Total
6.39 sq mi (16.55 km2)
 • Land6.14 sq mi (15.91 km2)
 • Water0.25 sq mi (0.64 km2)
Elevation
738 ft (225 m)
Population
 (2020)
 • Total
7,989
 • Density1,300.3/sq mi (502.04/km2)
Time zoneUTC-6 (CST)
 • Summer (DST)UTC-5 (CDT)
ZIP code
61080
Area codes815, 779
FIPS code17-70590
GNIS feature ID2395912
Websitehttp://www.southbeloit.org/

South Beloit is a city in Winnebago County, Illinois, United States. It is a suburban extension of Beloit, Wisconsin, located along the Illinois–Wisconsin border within the Rockford metropolitan area. The population was 7,989 at the 2020 census.