South Beloit

County:: Winnebago County
County Seat:: No
Area (mi²):: 6.144
State:: Illinois

South Beloit is a city located in Winnebago County, Illinois. South Beloit has a 2025 population of 7,838. South Beloit is currently declining at a rate of -0.34% annually and its population has decreased by -1.72% since the most recent census, which recorded a population of 7,975 in 2020.

The average household income in South Beloit is $90,064 with a poverty rate of 8.61%. The median age in South Beloit is 35.7 years: 36.3 years for males, and 35 years for females.

Demographics

The racial composition of South Beloit includes 80.35% White, 7.18% other race, 3.49% Black or African American, and smaller percentages for Asian, Native Hawaiian or Pacific Islander, Native American and multiracial populations.

Population by Race

White

Two or more races

Other race

Black or African American

Asian

Native Hawaiian or Pacific Islander

Native American

Race	Population	Percentage (of total)
White	6,372	80.35%
Two or more races	604	7.62%
Other race	569	7.18%
Black or African American	277	3.49%
Asian	97	1.22%
Native Hawaiian or Pacific Islander	11	0.14%
Native American	0	0%

South Beloit Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

South Beloit's average per capita income is $52,209. Household income levels show a median of $81,836. The poverty rate stands at 8.61%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Married Families	$108,403	-
Families	$105,929	$112,206
Households	$81,836	$90,064
Non Families	$43,024	$57,066

$52,209

Average Income

$81,836

Median Household Income

8.61%

Poverty Rate