Wonder Lake

County:: McHenry County
County Seat:: No
Area (mi²):: 4.964
State:: Illinois

Wonder Lake is a village located in McHenry County, Illinois. Wonder Lake has a 2025 population of 5,504. Wonder Lake is currently growing at a rate of 5.93% annually and its population has increased by 38.78% since the most recent census, which recorded a population of 3,966 in 2020.

The average household income in Wonder Lake is $125,495 with a poverty rate of 4.46%. The median age in Wonder Lake is 33.8 years: 33.7 years for males, and 35.3 years for females.

Demographics

The racial composition of Wonder Lake includes 77.73% White, 4.56% other race, and smaller percentages for 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	3,219	77.73%
Two or more races	657	15.87%
Other race	189	4.56%
Asian	76	1.84%
Black or African American	0	0%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%

Wonder Lake Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Wonder Lake's average per capita income is $70,566. Household income levels show a median of $102,829. The poverty rate stands at 4.46%.

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	$116,923	-
Families	$112,679	$117,258
Households	$102,829	$125,495
Non Families	$75,486	$154,552

$70,566

Average Income

$102,829

Median Household Income

4.46%

Poverty Rate