Algonquin, Illinois Population 2020

30,928

Algonquin is a city located in Illinois. With a 2020 population of 30,928, it is the 61st largest city in Illinois and the 1256th largest city in the United States. Algonquin is currently growing at a rate of 0.03% annually and its population has increased by 2.94% since the most recent census, which recorded a population of 30,046 in 2010. Spanning over 13 miles, Algonquin has a population density of 2,514 people per square mile.

The average household income in Algonquin is $121,704 with a poverty rate of 3.20%. The median rental costs in recent years comes to $1,694 per month, and the median house value is $250,900. The median age in Algonquin is 41.2 years, 39.7 years for males, and 42.5 years for females. For every 100 females there are 95.3 males.

Algonquin Demographics

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

  • White: 87.35%
  • Asian: 8.35%
  • Other race: 1.42%
  • Two or more races: 1.42%
  • Black or African American: 1.37%
  • Native American: 0.09%
  • Native Hawaiian or Pacific Islander: 0.00%
The current population of Algonquin, Illinois is 30,928, based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 30,910.The last official US Census in 2010 recorded the population at 30,046.

Algonquin, Illinois Population 2020

Population by Race

Race Population Percentage
White26,82587.35%
Asian2,5658.35%
Some Other Race4371.42%
Two or More Races4351.42%
Black or African American4201.37%
American Indian and Alaska Native270.09%

Algonquin Population Pyramid 2020

Algonquin Median Age

41.2


Total

39.7


Male

42.5


Female

Algonquin Adults

There are 23,394 adults, (3,320 of whom are seniors) in Algonquin.

Algonquin Age Dependency

53

Age Dependency Ratio

16.5

Old Age Dependency Ratio

36.4

Child Dependency Ratio

Algonquin Sex Ratio

Female

15,721

51.19%

Male

14,988

48.81%

Algonquin Households and Families

Algonquin Renter vs Owner Occupied by Household Type

Algonquin Household Types

Type Owner Renter
Married93.1%6.9%
All88.9%11.1%
Female84.8%15.2%
Non Family80.3%19.7%
Male73.7%26.3%

88.9%

Rate of Home Ownership

Type Count Average Size Owned
All10,7902.8588.9
Married7,1083.393.1
Non Family2,2441.380.3
Female9712.8384.8
Male4673.4473.7

3.22

Average Family Size

2.85

Average Household Size

5%

Unmarried (Opposite Sex)

0%

Unmarried (Same Sex)

Algonquin Education

Education Attained Count Percentage
Less Than 9th Grade4051.96%
9th to 12th Grade5522.67%
High School Graduate3,65717.71%
Some College5,08824.63%
Associates Degree1,7638.54%
Bachelors Degree6,09629.51%
Graduate Degree3,09314.98%

Algonquin Educational Attainment by Race

Name Total High School Bachelors
White17,44716,9677,539
Asian1,6811,4411,042
Hispanic1,048832390
Black274274136
Other Race27125250
Multiple Races19717660
Native American272719

The highest rate of high school graduation is among black people with a rate of 100.00%.

The highest rate of bachelors degrees is among native american people with a rate of 70.37%.

Name Average Male Female
Overall$58,364$74,524$41,528
Less Than High School$31,264$43,362$21,131
High School Grad$44,666$56,375$32,482
Some College$46,869$66,867$32,265
Bachelors Degree$73,977$86,447$55,341
Graduate Degree$74,944$108,750$60,913

$58,364

Average Earnings

$74,524

Average Male

$41,528

Average Female

Algonquin Language

Algonquin Language by Age

Algonquin Language

82.38% of Algonquin residents speak only English, while 17.62% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 9.27% of the population.

Algonquin Poverty

Algonquin Poverty by Race

Name Total In Poverty Poverty Rate
White25,3604861.92%
Hispanic1,93225713.30%
Asian2,5652158.38%
Multiple4354610.57%

3.20%

Overall Poverty Rate

4.17%

Male Poverty Rate

2.26%

Female Poverty Rate

Poverty in Algonquin

The race most likely to be in poverty in Algonquin is Hispanic, with 13.30% below the poverty level.

The race least likely to be in poverty in Algonquin is White, with 1.92% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.37%. Among those working part-time, it was 5.24%, and for those that did not work, the poverty rate was 7.74%.

Name Poverty
Less Than High School8.25%
High School2.93%
Bachelors or Greater2.55%
Some College2.34%
Name Poverty
Male Unemployed11.63%
Female Unemployed4.46%
Male Employed2.45%
Female Employed1.54%

Algonquin Income

Algonquin Income by Household Type

Name Median Mean
Households$104,532$121,704
Families$118,014$136,041
Married Families$132,915-
Non Families$49,873$62,843

Algonquin Marital Status

Algonquin Marital Status

Marriage Rates

59.9%

Overall Marriage Rate

62.4%

Male Marriage Rate

57.5%

Female Marriage Rate

Algonquin Married by Age and Sex

Algonquin Marriage

The age group where males are most likely to be married is 45-54, while the female age group most likely to be married is 35-44.

Algonquin Marital Status by Race

Algonquin Veterans

1,217

Number of Veterans

1,080

Male Veterans

137

Female Veterans

War Veterans
Vietnam524
First Gulf War152
World War II86
Second Gulf War83
Korea34
Name Veterans % of Total
White1,1205.45%
Hispanic383.01%
2 or More3415.45%
Asian341.70%
Black299.39%

$Algonquin Veterans by Education

0.58%

Veteran Poverty Rate

29.83%

Veteran Disability Rate

Algonquin Employment Status

74.5%

Labor Force Participation

70%

Employment Rate

6.1%

Unemployment Rate

Algonquin Place of Birth

Origin of Non-Citizens

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

Origin of Naturalized Citizens

69.29%

Born in Illinois

87.48%

Native Born

12.52%

Foreign Born

3.20%

Non Citizen

Place of Birth

87.48% of Algonquin residents were born in the United States, with 69.29% having been born in Illinois. 3.20% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Year Population Growth Annual Growth Rate
202030,92890.03%
201930,91990.03%
201830,910-12-0.04%
201730,92290.03%
201630,9134341.42%
201530,4791510.50%
201430,328-66-0.22%
201330,3944381.46%
201229,956-71-0.24%
201130,027-52-0.17%
201030,0796,8032.60%
200023,27611,6137.15%
199011,6635,8297.17%
19805,8342,3195.20%
19703,5150.00%