Knollwood, Illinois Population 2024

1,842

Knollwood is a city located in Lake County Illinois. Knollwood has a 2024 population of 1,842. Knollwood is currently growing at a rate of 2.22% annually and its population has increased by 9.38% since the most recent census, which recorded a population of 1,684 in 2020.

The average household income in Knollwood is $144,282 with a poverty rate of 6.93%. The median age in Knollwood is 38.7 years: 35.3 years for males, and 45.1 years for females.

Knollwood Demographics

According to the most recent ACS, the racial composition of Knollwood was:

  • White: 85.37%
  • Two or more races: 7.37%
  • Black or African American: 4.54%
  • Other race: 1.7%
  • Asian: 1.02%
  • Native American: 0%
  • Native Hawaiian or Pacific Islander: 0%
Land Area (mi²)
0.6 sq mi
Density (mi²)
3,045.70/sq mi
Growth Since 2020
9.38% (158)
The current population of Knollwood, Illinois is 1,842 based on our projections of the latest US Census estimates (released May 2024). The last official US Census in 2020 recorded the population at 1,684.

Population by Race

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Race
Population
Percentage (of total)
White1,50585.37%
Two or more races1307.37%
Black or African American804.54%
Other race301.7%
Asian181.02%
Native American00%
Native Hawaiian or Pacific Islander00%

White

Two or more races

Black or African American

Other race

Asian

Native American

Native Hawaiian or Pacific Islander

Knollwood Population by Race

Knollwood Population Pyramid 2024

Knollwood Median Age

38.7

Total

35.3

Male

45.1

Female

Knollwood Adults

There are 1,157 adults, (355 of whom are seniors) in Knollwood.

Knollwood Age Dependency

119.8

Age Dependency Ratio

44.3

Old Age Dependency Ratio

75.6

Child Dependency Ratio

Knollwood Sex Ratio

Female99156.21%
Male77243.79%

Knollwood Population by Age

Knollwood Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All5772.971.128.9
Married3493.5489.410.6
Non Family1321.2744.755.3
Female872.8934.565.5
Male921000

3.38

Average Family Size

2.9

Average Household Size

71.1%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Knollwood Households and Families

Male

Female

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Education Attained
Count
Percentage
9th to 12th Grade363.21%
Associates Degree11610.36%
Bachelors Degree36132.23%
Graduate Degree20518.3%
High School Graduate25622.86%
Less Than 9th Grade191.7%
Some College12711.34%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Knollwood Educational Attainment by Sex (over 25)

Knollwood Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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Race
Total
High School
Bachelors
White928889519
Hispanic13912935
2+ Races61610
Other Race302010
Black27270
Asian181212

The highest rate of high school graduation is among black people with a rate of 100%.

The highest rate of bachelors degrees is among asian people with a rate of 66.67%.

Knollwood Educational Attainment by Race

All

Male

Female

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Name
Average
Male
Female
Bachelors Degree$65,455$0$65,682
Graduate Degree$115,625$117,250$0
High School Graduate$170,863$0$0
Less Than 9th Grade$0$0$0
Overall$72,241$0$65,057
Some College$87,813$61,944$0

$72,241

Average Earnings

$0

Average Male

$65,057

Average Female

Knollwood Earnings by Educational Attainment

Knollwood Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Knollwood Language

85.62% of Knollwood residents speak only English, while 14.38% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 9.23% of the population.

Knollwood Language

Knollwood Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
Black7070100%
White1,289403.1%
Multiple12264.92%

6.93%

Overall Poverty Rate

7.92%

Male Poverty Rate

6.14%

Female Poverty Rate

Poverty in Knollwood

The race most likely to be in poverty in Knollwood is Black, with 100% below the poverty level.

The race least likely to be in poverty in Knollwood is White, with 3.1% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0%. Among those working part-time, it was 22.05%, and for those that did not work, the poverty rate was 6.29%.

Knollwood Poverty

rate

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Rate
Poverty
High School8.46%
Some College8.12%
Bachelors or Greater3.76%
Less Than 9th Grade0%

Knollwood Poverty Rate by Education

rate

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Rate
Poverty
Male Employed0%
Male Unemployed0%
Female Employed8.78%
Female Unemployed0%

Knollwood Poverty Rate by Employment Status and Sex

Knollwood Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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Name
Median
Mean
Families$185,439$157,397
Households$157,396$144,282
Married Families$186,715$-999,999,999
Non Families$58,125$100,071

mean

median

Income by Household Type

Knollwood Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

56.2%

Overall Marriage Rate

65.2%

Male Marriage Rate

50.1%

Female Marriage Rate

Knollwood Married by Age and Sex

male

female

Knollwood Marriage

The age group where males are most likely to be married is 20-34, while the female age group most likely to be married is 45-54.

Knollwood Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Knollwood Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

57

Number of Veterans

57

Male Veterans

0

Female Veterans

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War
Veterans
Vietnam27
First Gulf War20
Second Gulf War10
Korea0
World War II0

Knollwood Veterans by War

count

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Age Group
Veterans
65 to 7430
55 to 6420
75+7
18 to 340
35 to 540

Knollwood Veterans by Age

count

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Name
Veterans
% of Total
White576.19%

Knollwood Veterans by Race

Knollwood Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

0%

Veteran Poverty Rate

12.28%

Veteran Disability Rate

Knollwood Veterans by Education

LaborForceParticipation

50.6%

Labor Force Participation

42.4%

Employment Rate

0%

Unemployment Rate

Knollwood Employment by Age

LaborForceParticipation

Knollwood Employment by Race

LaborForceParticipation

Knollwood Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

65.85%

Born in Knollwood

91.66%

Native Born

8.34%

Foreign Born

0.57%

Non Citizen

7.77%

Naturalized

Place of Birth

91.66% of Knollwood residents were born in the United States, with 65.85% having been born in Illinois. 0.57% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.

Knollwood Place of Birth

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
20241,842402.22%
20231,802392.21%
20221,763442.56%
20211,719352.08%
20201,684191.14%
20191,665-155-8.52%
20181,82060.33%
20171,814854.92%
20161,7291167.19%
20151,613946.19%
20141,519-52-3.31%
20131,57122616.8%
20121,345-55-3.93%
20111,400-347-19.86%
20101,74700%

Knollwood Population by Year