Clear Lake township

County:: Sangamon County
County Seat:: No
Area (mi²):: 33.685
State:: Illinois

Clear Lake township is located in Sangamon County, Illinois. Clear Lake township has a 2025 population of 8,207. Clear Lake township is currently declining at a rate of -0.28% annually and its population has decreased by -1.98% since the most recent census, which recorded a population of 8,373 in 2020.

The average household income in Clear Lake township is $92,456 with a poverty rate of 9.8%. The median age in Clear Lake township is 45.8 years: 40.6 years for males, and 51 years for females.

Demographics

The racial composition of Clear Lake township includes 94.94% White, and smaller percentages for other race, Asian, Black or African American, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Other race

Asian

Black or African American

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	7,902	94.94%
Two or more races	312	3.75%
Other race	70	0.84%
Asian	39	0.47%
Black or African American	0	0%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%

Clear Lake township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Clear Lake township's average per capita income is $48,233. Household income levels show a median of $78,542. The poverty rate stands at 9.8%.

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	$102,750	-
Families	$88,633	$104,383
Households	$78,542	$92,456
Non Families	$41,650	$65,089

$48,233

Average Income

$78,542

Median Household Income

9.8%

Poverty Rate