Big Rock township

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

Big Rock township is located in Kane County, Illinois. Big Rock township has a 2025 population of 1,728. Big Rock township 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 township is $132,092 with a poverty rate of 5.21%. The median age in Big Rock township is 44.9 years: 46.2 years for males, and 41.4 years for females.

Demographics

The racial composition of Big Rock township includes 93.87% 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	1,532	93.87%
Two or more races	78	4.78%
Asian	15	0.92%
Black or African American	4	0.25%
Other race	3	0.18%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%

Big Rock township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Big Rock township'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