Lemont

County:: Cook County
County Seat:: No
Area (mi²):: 8.471
State:: Illinois

Lemont is a village located in Cook County, Illinois. Lemont has a 2025 population of 17,437. Lemont is currently declining at a rate of -0.39% annually and its population has decreased by -1.94% since the most recent census, which recorded a population of 17,782 in 2020.

The average household income in Lemont is $146,268 with a poverty rate of 3.14%.The median age in Lemont is 43.7 years: 42.4 years for males, and 45.7 years for females.

Demographics

The racial composition of Lemont includes 88.22% White, and smaller percentages for Asian, Black or African American, other race, Native American and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	15,565	88.22%
Two or more races	1,314	7.45%
Asian	265	1.5%
Black or African American	235	1.33%
Other race	201	1.14%
Native American	63	0.36%

Lemont Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Lemont's average per capita income is $74,690. Household income levels show a median of $126,100. The poverty rate stands at 3.14%.

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	$170,304	-
Families	$158,103	$172,292
Households	$126,100	$146,268
Non Families	$54,051	$68,406

$74,690

Average Income

$126,100

Median Household Income

3.14%

Poverty Rate