South Grove township

County:: DeKalb County
County Seat:: No
Area (mi²):: 34.409
State:: Illinois

South Grove township is located in DeKalb County, Illinois. South Grove township has a 2025 population of 406. South Grove township is currently declining at a rate of -0.98% annually and its population has decreased by -3.56% since the most recent census, which recorded a population of 421 in 2020.

The average household income in South Grove township is $118,648 with a poverty rate of 3.19%.The median age in South Grove township is 56.4 years: 56.7 years for males, and 54.3 years for females.

Demographics

The racial composition of South Grove township includes 79.02% White, 10.88% other race, and smaller percentages for Black or African American and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	305	79.02%
Other race	42	10.88%
Two or more races	33	8.55%
Black or African American	6	1.55%

South Grove township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

South Grove township's average per capita income is $49,500. Household income levels show a median of $110,208. The poverty rate stands at 3.19%.

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
Households	$110,208	$118,648
Married Families	$110,208	-
Non Families	$95,000	$93,028
Families	$94,844	$117,670

$49,500

Average Income

$110,208

Median Household Income

3.19%

Poverty Rate