Spring Lake township

County:: Tazewell County
County Seat:: No
Area (mi²):: 62.464
State:: Illinois

Spring Lake township is located in Tazewell County, Illinois. Spring Lake township has a 2025 population of 1,645. Spring Lake township is currently declining at a rate of -0.12% annually and its population has decreased by -1.56% since the most recent census, which recorded a population of 1,671 in 2020.

The average household income in Spring Lake township is $95,666 with a poverty rate of 2.91%.The median age in Spring Lake township is 47.9 years: 51 years for males, and 46.5 years for females.

Demographics

The racial composition of Spring Lake township includes 93.34% White, and smaller percentages for and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	1,457	93.34%
Two or more races	104	6.66%

Spring Lake township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Spring Lake township's average per capita income is $48,750. Household income levels show a median of $83,147. The poverty rate stands at 2.91%.

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	$91,159	-
Families	$90,797	$108,348
Households	$83,147	$95,666
Non Families	$35,357	$48,017

$48,750

Average Income

$83,147

Median Household Income

2.91%

Poverty Rate