Lemont Flag

Lemont

County:
Cook County
County Seat:
No
Area (mi²):
20.366
State:
Illinois

Lemont is located in Cook County, Illinois. Lemont has a 2025 population of 22,113. Lemont is currently declining at a rate of -0.3% annually and its population has decreased by -2.33% since the most recent census, which recorded a population of 22,641 in 2020.

The average household income in Lemont is $149,704 with a poverty rate of 3.64%.The median age in Lemont is 44.1 years: 43 years for males, and 46.6 years for females.

22.1K
Total Population
1,086
Density (mi²)
-66 -0.3%
Growth

Lemont Population

Lemont Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Lemont includes 87.22% White, and smaller percentages for Asian, other race, Black or African American, Native American and multiracial populations.

Population by Race

White (87.2%)

Two or more races (7.4%)

Asian (2.1%)

Other race (1.6%)

Black or African American (1.3%)

Native American (0.3%)

Race
Population
Percentage (of total)
White19,57087.22%
Two or more races1,6697.44%
Asian4762.12%
Other race3601.6%
Black or African American2991.33%
Native American630.28%

Lemont Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Lemont's average per capita income is $73,077. Household income levels show a median of $123,529. The poverty rate stands at 3.64%.

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$170,504-
Families$161,323$180,917
Households$123,529$149,704
Non Families$46,510$59,780

$73,077

Average Income

$123,529

Median Household Income

3.64%

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)