South Grove Flag

South Grove

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

South Grove is located in DeKalb County, Illinois. South Grove has a 2025 population of 406. South Grove 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 is $118,648 with a poverty rate of 3.19%.The median age in South Grove is 56.4 years: 56.7 years for males, and 54.3 years for females.

406
Total Population
12
Density (mi²)
-4 -0.98%
Growth

South Grove Population

South Grove Population

Data after 2023 is projected based on recent change

Demographics

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

Population by Race

White (79.0%)

Other race (10.9%)

Two or more races (8.6%)

Black or African American (1.6%)

Race
Population
Percentage (of total)
White30579.02%
Other race4210.88%
Two or more races338.55%
Black or African American61.55%

South Grove Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

South Grove'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

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)