Big Rock township Flag

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 2026 population of 1,742. Big Rock township is currently declining at a rate of -0.17% annually and its population has decreased by -1.97% since the most recent census, which recorded a population of 1,777 in 2020.

The median household income in Big Rock township is $158,250 with a poverty rate of 10.66%. The median age in Big Rock township is 49.3 years: 51.1 years for males, and 49.1 years for females. For every 100 females there are 96.3 males.

1.7K
Total Population
50
Density (mi²)
-3 -0.17%
Growth

Big Rock township Population

Big Rock township Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20261,742-3-0.17%
20251,745-3-0.17%
20241,748-3-0.17%
20231,751-2-0.11%
20221,753-16-0.9%
20211,769-8-0.45%
20201,777-3-0.17%
20191,848-19-1.02%
20181,867-15-0.8%
20171,882-4-0.21%
20161,886-2-0.11%
20151,88840.21%
20141,884130.69%
20131,87110.05%
20121,87060.32%
20111,86450.27%
20101,85620.11%

Median Age

Overall: 49.3 years
Female: 49.1 years
Male: 51.1 years

Big Rock township Adults

There are 1,622 adults, (303 of whom are seniors) in Big Rock township.

Sex Ratio

Female: 1,075 (50.9%)
Male: 1,035 (49.1%)

Demographics

The racial composition of Big Rock township includes 81.61% White, and smaller percentages for Asian, Black or African American, other race and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White1,72281.61%
Two or more races37017.54%
Asian120.57%
Black or African American30.14%
Other race30.14%
Race
Population ↓
Percentage (of total)
White1004.74%
Two or more races854.03%
Other race30.14%
Race
Population ↓
Percentage (of total)
White1,62276.87%
Two or more races28513.51%
Asian120.57%
Black or African American30.14%

Big Rock township Marital Status

Economics and Income Statistics

Big Rock township 's average per capita income is $71,023. Household income levels show a median of $158,250. The poverty rate stands at 10.66%.

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$162,667-
Families$162,586$145,117
Households$158,250$140,688
Non Families$110,792$117,228

$71,023

Average Income

$158,250

Median Household Income

10.66%

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)