South Beloit is a city in Winnebago County, Illinois, home to about 7,946 people across 6.1 square miles. Its ZIP code is 61080, and parts of 61073 are in South Beloit too.
Homes sold for a median of $158 per square foot in the three months ending August 2026, a seller’s market.
Mostly South Beloit; also Roscoe
Mostly Roscoe; part is in South Beloit
Each card is that ZIP code’s whole market, including any part outside South Beloit. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up South Beloit’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | General Mitchell International Airport (MKE)66 miles away |
|---|---|
| Closer regional airport | Chicago Rockford International Airport (RFD)20 miles away |
| Nearest city of 250,000+ | Madison, WI47 miles away |
| Nearest city of 1 million+ | Chicago, IL82 miles away |
Straight-line distances from the center of South Beloit; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
South Beloit had 7,989 residents in the 2020 census, up 48% since 2000.
It’s the 268th largest of 1,450 towns in Illinois by population.
Winnebago County grew from 47,845 residents in 1900 to 285,350 in 2020.
Winnebago County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 80°F in summer, and winter lows average 11°F. About 37.3 inches of rain and melted snow fall in a typical year, with about 36 inches of snow.
Source: NOAA 1991–2020 climate normals, Beloit, WI weather station (2 miles away).
117,137 jobs at 6,286 businesses in Winnebago County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
11 doctors and other health care providers list an office in South Beloit.
Nearest hospitals
Providers with an office here
| Primary care doctors | 2 |
|---|---|
| Dentists | 1 |
| Nurse practitioners and physician assistants | 2 |
| Mental health providers | 3 |
| Physical and occupational therapists | 1 |
| Chiropractors | 2 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (11 nearby)
Grocery stores (3 nearby)
Pharmacies (1 nearby)
Libraries (2 nearby)
Museums (4 nearby)
Theaters and performance venues (7 nearby)
Counts are within about 2 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Established in 1917.
Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.
Public schools here are run by County of Winnebago SD 320, Prairie Hill CCSD 133. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Clark Elementary SchoolSouth Beloit | Pre-K–1 | 185 | Public | 0.6 mi |
| Prairie Hill Elem SchoolSouth Beloit | Pre-K–4 | 447 | Public | 1.4 mi |
| Riverview Elementary SchoolSouth Beloit | 2–4 | 199 | Public | 1.4 mi |
| Blackhawk Elementary SchoolSouth Beloit | 5–6 | 139 | Public | 0.8 mi |
| Willowbrook Middle SchoolSouth Beloit | 5–8 | 348 | Public | 2.2 mi |
| South Beloit Jr High SchoolSouth Beloit | 7–8 | 118 | Public | 0.8 mi |
| South Beloit Sr High SchoolSouth Beloit | 9–12 | 254 | Public | 1.0 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Roscoe and Machesney Park.
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.