Algonquin Flag

Algonquin

County:
McHenry County
County Seat:
No
Area (mi²):
46.491
State:
Illinois

Algonquin is located in McHenry County, Illinois. Algonquin has a 2025 population of 89,576 . Algonquin is currently growing at a rate of 0.74% annually and its population has increased by 2.34% since the most recent census, which recorded a population of 87,531 in 2020.

The average household income in Algonquin is $128,044 with a poverty rate of 5.99%. The median age in Algonquin is 39.2 years: 38 years for males, and 40.5 years for females. For every 100 females there are 99.0 males.

89.6K
Total Population
1,927
Density (mi²)
661 0.74%
Growth

Algonquin Population

Algonquin Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Algonquin includes 82.06% White, 4.62% other race, and smaller percentages for Asian, Black or African American, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White (82.06%)

Two or more races (8.39%)

Other race (4.62%)

Asian (2.85%)

Black or African American (1.68%)

Native American (0.39%)

Native Hawaiian or Pacific Islander (0.01%)

Race
Population
Percentage (of total)
White72,09182.06%
Two or more races7,3698.39%
Other race4,0594.62%
Asian2,5022.85%
Black or African American1,4751.68%
Native American3400.39%
Native Hawaiian or Pacific Islander110.01%

Algonquin Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Algonquin's average per capita income is $60,099. Household income levels show a median of $105,791. The poverty rate stands at 5.99%.

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$132,959-
Families$120,393$144,027
Households$105,791$128,044
Non Families$58,998$76,828

$60,099

Average Income

$105,791

Median Household Income

5.99%

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)