Big Rock

County:: Kane County
County Seat:: No
Area (mi²):: 4.318
State:: Illinois

Big Rock is a village located in Kane County, Illinois. Big Rock has a 2025 population of 1,070. Big Rock is currently declining at a rate of -0.65% annually and its population has decreased by -3.17% since the most recent census, which recorded a population of 1,105 in 2020.

The average household income in Big Rock is $140,371 with a poverty rate of 4.55%. The median age in Big Rock is 40.6 years: 39 years for males, and 40.9 years for females.

Demographics

The racial composition of Big Rock includes 91.72% White, and smaller percentages for Asian, Black or African American, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Asian

Black or African American

Other race

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	1,108	91.72%
Two or more races	78	6.46%
Asian	15	1.24%
Black or African American	4	0.33%
Other race	3	0.25%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%

Big Rock Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Big Rock's average per capita income is $69,236. Household income levels show a median of $126,667. The poverty rate stands at 4.55%.

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	$136,354	-
Families	$136,250	$150,335
Households	$126,667	$140,371
Non Families	$87,813	$97,398

$69,236

Average Income

$126,667

Median Household Income

4.55%

Poverty Rate