Algonquin, Illinois Population 2024

29,905

Algonquin is a city located in Kane County and McHenry County Illinois. Algonquin has a 2024 population of 29,905. Algonquin is currently declining at a rate of -0.08% annually but its population has increased by 0.77% since the most recent census, which recorded a population of 29,677 in 2020.

The average household income in Algonquin is $146,904 with a poverty rate of 4.36%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Algonquin is 41 years, 40.2 years for males, and 42.1 years for females.

Algonquin Demographics

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

  • White: 83.35%
  • Two or more races: 5.57%
  • Asian: 5.23%
  • Other race: 2.9%
  • Black or African American: 2.1%
  • Native American: 0.84%
  • Native Hawaiian or Pacific Islander:
Land Area (mi²)
12.3 sq mi
Density (mi²)
2,431.0/sq mi
Growth Since 2020
0.77% (228)
The current population of Algonquin, Illinois is 29,905 based on our projections of the latest US Census estimates.The last official US Census in 2020 recorded the population at 29,677.

Algonquin, Illinois Population 2024

Population by Race

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Race
Population
Percentage (of total)
White24,91383.35%
Two or more races1,6655.57%
Asian1,5645.23%
Other race8682.9%
Black or African American6272.1%
Native American2510.84%
Native Hawaiian or Pacific Islander
showing: 7 rows

White

Two or more races

Asian

Other race

Black or African American

Native American

Native Hawaiian or Pacific Islander

Algonquin Population by Race

Algonquin Population Pyramid 2024

Algonquin Median Age

41

Total

40.2

Male

42.1

Female

Algonquin Adults

There are 23,661 adults, (4,134 of whom are seniors) in Algonquin.

Algonquin Age Dependency

53.1

Age Dependency Ratio

21.2

Old Age Dependency Ratio

31.9

Child Dependency Ratio

Algonquin Sex Ratio

Female14,86149.72%
Male15,02750.28%

Algonquin Population by Age

Algonquin Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All10,9642.7385.914.1
Married6,7703.1293.36.7
Non Family2,6071.3974.125.9
Female8322.9982.117.9
Male7553.5264.935.1
showing: 5 rows

3.07

Average Family Size

2.73

Average Household Size

85.9%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Algonquin Households and Families

Male

Female

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Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Algonquin Educational Attainment by Sex (over 25)

Algonquin Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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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 47.8%.

Algonquin Educational Attainment by Race

All

Male

Female

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$69,486

Average Earnings

$87,787

Average Male

$56,220

Average Female

Algonquin Earnings by Educational Attainment

Algonquin Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Algonquin Language

81.01% of Algonquin residents speak only English, while 18.99% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 7.84% of the population.

Algonquin Language

Algonquin Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White23,2006922.98%
Asian1,56434021.74%
Hispanic3,3371243.72%
Multiple1,665975.83%
Black627528.29%
Other868171.96%
showing: 6 rows

4.36%

Overall Poverty Rate

5.19%

Male Poverty Rate

3.52%

Female Poverty Rate

Poverty in Algonquin

The race most likely to be in poverty in Algonquin is Asian, with 21.74% below the poverty level.

The race least likely to be in poverty in Algonquin is Other, with 1.96% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.93%. Among those working part-time, it was 8.77%, and for those that did not work, the poverty rate was 7.62%.

Algonquin Poverty

rate

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Rate
Poverty
Less Than 9th Grade13.92%
High School4.66%
Some College2.78%
Bachelors or Greater2.01%
showing: 4 rows

Algonquin Poverty Rate by Education

rate

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Rate
Poverty
Male Unemployed3.88%
Male Employed3.78%
Female Unemployed3.41%
Female Employed2.45%
showing: 4 rows

Algonquin Poverty Rate by Employment Status and Sex

Algonquin Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

Algonquin Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

56.2%

Overall Marriage Rate

57.0%

Male Marriage Rate

55.5%

Female Marriage Rate

Algonquin Married by Age and Sex

male

female

Algonquin Marriage

The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 45-54.

Algonquin Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Algonquin Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

1,270

Number of Veterans

1,195

Male Veterans

75

Female Veterans

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Algonquin Veterans by War

count

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Algonquin Veterans by Age

count

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Algonquin Veterans by Race

Algonquin Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

3.54%

Veteran Poverty Rate

20.79%

Veteran Disability Rate

Algonquin Veterans by Education

LaborForceParticipation

74.8%

Labor Force Participation

71.3%

Employment Rate

4.7%

Unemployment Rate

Algonquin Employment by Age

LaborForceParticipation

Algonquin Employment by Race

LaborForceParticipation

Algonquin 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

70.84%

Born in Algonquin

88.4%

Native Born

11.6%

Foreign Born

3.54%

Non Citizen

8.06%

Naturalized

Place of Birth

88.4% of Algonquin residents were born in the United States, with 70.84% having been born in Illinois. 3.54% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.

Algonquin Place of Birth

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
202929,790-23-0.08%
202829,813-23-0.08%
202729,836-23-0.08%
202629,859-23-0.08%
202529,882-23-0.08%
202429,905-23-0.08%
202329,928-23-0.08%
202229,951-23-0.08%
202129,9742971%
202029,677-1,194-3.87%
201930,871160.05%
201830,855-38-0.12%
201730,89390.03%
201630,8844191.38%
201530,4651420.47%
201430,323-66-0.22%
201330,3894351.45%
201229,954-77-0.26%
201130,031-48-0.16%
201030,0796,80329.23%
200023,27611,61399.57%
199011,6635,82999.91%
19805,8342,31965.97%
19703,515
showing: 24 rows

Algonquin Population by Year