About This Place
South Beloit is a city in Winnebago County, Illinois, United States. It is part of the Rockford, Illinois Metropolitan Statistical Area. At the 2010 census, the city's population was 7,892, up from 5,297 at the 2000 census.
South Beloit is located at 42°29′03″N 89°02′19″W / 42.484228°N 89.038586°W / 42.484228; -89.038586 (42.484228, -89.038586).
According to the United States Census Bureau, the city has a total area of 4.1 square miles (10.6 km2), of which, 4.0 square miles (10.3 km2) of it is land and 0.1 square miles (0.3 km2) of it (3.18%) is water.