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 and multiracial populations.

Population by Race

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%

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