Knollwood Flag

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.

1.8K
Total Population
2,922
Density (mi²)
1 0.06%
Growth

Knollwood Population

Knollwood Population

Data after 2023 is projected based on recent change

Demographics

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

Population by Race

Race
Population
Percentage (of total)
White1,58082.85%
Two or more races1527.97%
Black or African American1166.08%
Other race331.73%
Asian261.36%

Knollwood Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

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

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)