Lemont Flag

Lemont

County:
Cook County
County Seat:
No
Area (mi²):
9.137
State:
Illinois

Lemont is a village located in Cook County, Illinois. Lemont has a 2026 population of 18,403. Lemont is currently growing at a rate of 0.55% annually and its population has increased by 3.38% since the most recent census, which recorded a population of 17,802 in 2020.

The median household income in Lemont is $123,370 with a poverty rate of 3.08%. The median age in Lemont is 43.7 years: 43.1 years for males, and 44.9 years for females. For every 100 females there are 101.1 males.

18.4K
Total Population
2,014
Density (mi²)
100 0.55%
Growth

Lemont Population

Lemont Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202618,4031000.55%
202518,3031000.55%
202418,2034722.66%
202317,731420.24%
202217,689190.11%
202117,670-138-0.77%
202017,8025233.03%
201917,2791440.84%
201817,135970.57%
201717,038870.51%
201616,9511871.12%
201516,7641200.72%
201416,6441440.87%
201316,5001610.99%
201216,3391210.75%
201116,2181430.89%
201016,075750.47%
200013,0985,75078.25%
19907,3481,70830.28%
19805,64056011.02%
19705,0801,68349.54%
19603,39764023.21%
19502,7572007.82%
19402,557-25-0.97%
19302,58200%

Median Age

Overall: 43.7 years
Female: 44.9 years
Male: 43.1 years

Lemont Adults

There are 13,360 adults, (3,715 of whom are seniors) in Lemont.

Sex Ratio

Female: 8,862 (49.7%)
Male: 8,958 (50.3%)

Demographics

The racial composition of Lemont includes 86.31% White, and smaller percentages for Asian, Black or African American, other race and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White15,38186.31%
Two or more races1,4378.06%
Asian5022.82%
Black or African American2961.66%
Other race2041.14%
Race
Population ↓
Percentage (of total)
Two or more races1,0846.08%
White3131.76%
Other race1821.02%
Race
Population ↓
Percentage (of total)
White15,06884.56%
Asian5022.82%
Two or more races3531.98%
Black or African American2961.66%
Other race220.12%

Lemont Marital Status

Economics and Income Statistics

Lemont 's average per capita income is $81,213. Household income levels show a median of $123,370. The poverty rate stands at 3.08%.

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$167,150-
Families$156,507$174,204
Households$123,370$150,039
Non Families$55,738$68,695

$81,213

Average Income

$123,370

Median Household Income

3.08%

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)