Knollwood

County:: Lake County
County Seat:: No
Area (mi²):: 0.605
State:: Illinois

Knollwood is a CDP located in Lake County, Illinois. Knollwood has a 2025 population of 1,767. Knollwood is currently growing at a rate of 0.06% annually and its population has increased by 4.93% since the most recent census, which recorded a population of 1,684 in 2020.

The average household income in Knollwood is $136,300 with a poverty rate of 8.83%. The median age in Knollwood is 36.9 years: 34.9 years for males, and 38.2 years for females.

Demographics

The racial composition of Knollwood includes 82.85% White, 6.08% Black or African American, and smaller percentages for other race, Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Black or African American

Other race

Asian

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	1,580	82.85%
Two or more races	152	7.97%
Black or African American	116	6.08%
Other race	33	1.73%
Asian	26	1.36%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%

Knollwood Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Knollwood's average per capita income is $87,500. Household income levels show a median of $133,452. The poverty rate stands at 8.83%.

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	$193,169	-
Families	$168,973	$154,155
Households	$133,452	$136,300
Non Families	$42,266	$51,610

$87,500

Average Income

$133,452

Median Household Income

8.83%

Poverty Rate