Big Rock Flag

Big Rock

County:
Kane County
County Seat:
No
Area (mi²):
35.146
State:
Illinois

Big Rock is located in Kane County, Illinois. Big Rock has a 2025 population of 1,728. Big Rock is currently declining at a rate of -0.46% annually and its population has decreased by -2.81% since the most recent census, which recorded a population of 1,778 in 2020.

The average household income in Big Rock is $132,092 with a poverty rate of 5.21%.The median age in Big Rock is 44.9 years: 46.2 years for males, and 41.4 years for females.

1.7K
Total Population
49
Density (mi²)
-8 -0.46%
Growth

Big Rock Population

Big Rock Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Big Rock includes 93.87% White, and smaller percentages for Asian, Black or African American, other race and multiracial populations.

Population by Race

White (93.9%)

Two or more races (4.8%)

Asian (0.9%)

Black or African American (0.3%)

Other race (0.2%)

Race
Population
Percentage (of total)
White1,53293.87%
Two or more races784.78%
Asian150.92%
Black or African American40.25%
Other race30.18%

Big Rock Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Big Rock's average per capita income is $71,667. Household income levels show a median of $117,944. The poverty rate stands at 5.21%.

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$121,250-
Families$119,637$135,435
Households$117,944$132,092
Non Families$108,456$120,807

$71,667

Average Income

$117,944

Median Household Income

5.21%

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)