Willow Lake

County:: Stephenson County
County Seat:: No
Area (mi²):: 2.732
State:: Illinois

Willow Lake is a CDP located in Stephenson County, Illinois. Willow Lake has a 2025 population of 1,042. Willow Lake is currently growing at a rate of 7.09% annually and its population has increased by 38.56% since the most recent census, which recorded a population of 752 in 2020.

The average household income in Willow Lake is $112,154 with a poverty rate of 6.68%. The median age in Willow Lake is 56.6 years: 58.1 years for males, and 56 years for females.

Demographics

The racial composition of Willow Lake includes 84.25% White, 13.01% Black or African American, and smaller percentages for Asian, Two or more races, Native American, Native Hawaiian or Pacific Islander, other race and multiracial populations.

Population by Race

White

Black or African American

Asian

Two or more races

Native American

Native Hawaiian or Pacific Islander

Other race

Race	Population	Percentage (of total)
White	706	84.25%
Black or African American	109	13.01%
Asian	16	1.91%
Two or more races	7	0.84%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%
Other race	0	0%

Willow Lake Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Willow Lake's average per capita income is $56,786. Household income levels show a median of $93,750. The poverty rate stands at 6.68%.

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	$109,821	-
Non Families	$97,857	$85,716
Households	$93,750	$112,154
Families	$93,438	$117,385

$56,786

Average Income

$93,750

Median Household Income

6.68%

Poverty Rate