Algonquin

County:: McHenry County
County Seat:: No
Area (mi²):: 12.539
State:: Illinois

Algonquin is a village located in McHenry County, Illinois. Algonquin has a 2025 population of 30,439. Algonquin is currently growing at a rate of 0.51% annually and its population has increased by 2.57% since the most recent census, which recorded a population of 29,676 in 2020.

The average household income in Algonquin is $146,691 with a poverty rate of 4.51%.The median age in Algonquin is 41.3 years: 40.7 years for males, and 41.8 years for females.

Demographics

The racial composition of Algonquin includes 79.44% White, 5.59% Asian, 3.96% other race, and smaller percentages for Black or African American, Native American and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	23,756	79.44%
Two or more races	2,357	7.88%
Asian	1,671	5.59%
Other race	1,184	3.96%
Black or African American	666	2.23%
Native American	270	0.9%

Algonquin Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Algonquin's average per capita income is $71,438. Household income levels show a median of $131,753. The poverty rate stands at 4.51%.

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	$154,455	-
Families	$147,158	$159,669
Households	$131,753	$146,691
Non Families	$71,348	$89,326

$71,438

Average Income

$131,753

Median Household Income

4.51%

Poverty Rate