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 and multiracial populations.

Population by Race

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%

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