A Great Place To Live, Work & Play since 1917

Situated on the border of Wisconsin and Illinois, South Beloit offers a strategic location that provides unparalleled access to major markets. Whether you’re looking to establish your business or explore new opportunities, our community is perfectly positioned to help you thrive.

South Beloit is not just a place to work; it’s a place to call home. With beautiful walking paths, biking trails, local restaurants offering delicious cuisine and year-round attractions, there is something for everyone. Discover why so many individuals have chosen South Beloit as their place not only for work, but also for living and playing in this flourishing community.

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City Data

County: Winnebago County
Population 2022: 7,908

Population Change Since 2000: +46.5%

Median Resident age: 36.0 years

Zip code: 61080

Estimated median household income in 2022: $79,129

Additional City Data

Economic Development

South Beloit lies on the WI/IL state line, collaborating with economic development partners in Rock County, Wisconsin, and Winnebago County, Illinois. Our location between Lake Michigan and the Mississippi River places us in the heart of the Midwest's largest market. The area's diverse transportation systems offer quick access to these markets, with Interstate Highways 39, 90, and 43 connecting us to other Wisconsin and Illinois communities as well as the rest of the nation.

Natural History

South Beloit was rich in natural resources, including copper, lead, and bog iron. Winnebago County had abundant buff and blue limestone along the Rock River and Turtle Creek. Early settlers used buff limestone for houses and public buildings still visible in Rockford, Rockton, Beloit, and South Beloit. The area also featured fine sand deposits and high- quality clay that was attractive to industries.

Earliest Residents

Many Peoples have inhabited South Beloit over the years, including the Mound Builders, Sioux, and Illinswek (Illinois). Around 1830, a large Ho-Chunk village known as Ke-Chunk (Turtle Village) existed near the mouth of Turtle Creek close to the Illinois-Wisconsin state line in what is now Beloit, Wisconsin or South Beloit, Illinois. The word Ke-chunk (properly Kečąk), means “turtle” and was used to denote the Ho-Chunk village on Turtle Creek.

Learn More about Dr. Green and his research by visiting the Nature at The Confluence Website