Brookside township

County:: Clinton County
County Seat:: No
Area (mi²):: 24.314
State:: Illinois

Brookside township is located in Clinton County, Illinois. Brookside township has a 2025 population of 4,358. Brookside township is currently declining at a rate of -0.43% annually and its population has decreased by -1.63% since the most recent census, which recorded a population of 4,430 in 2020.

The average household income in Brookside township is $65,492 with a poverty rate of 22.86%. The median age in Brookside township is 44.3 years: 42.2 years for males, and 52.6 years for females.

Demographics

The racial composition of Brookside township includes 74.24% White, 20.44% Black or African American, and smaller percentages for Asian, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Black or African American

Two or more races

Asian

Other race

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	3,291	74.24%
Black or African American	906	20.44%
Two or more races	143	3.23%
Asian	80	1.8%
Other race	13	0.29%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%

Brookside township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Brookside township's average per capita income is $45,250. Household income levels show a median of $43,224. The poverty rate stands at 22.86%.

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	$84,750	-
Families	$59,688	$78,112
Households	$43,224	$65,492
Non Families	$34,825	$47,578

$45,250

Average Income

$43,224

Median Household Income

22.86%

Poverty Rate