Lemont township Flag

Lemont township

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

Lemont township is located in Cook County, Illinois. Lemont township has a 2026 population of 23,930. Lemont township is currently growing at a rate of 2.16% annually and its population has increased by 5.71% since the most recent census, which recorded a population of 22,638 in 2020.

The median household income in Lemont township is $120,984 with a poverty rate of 3.94%. The median age in Lemont township is 44.5 years: 43.5 years for males, and 46.1 years for females. For every 100 females there are 102.4 males.

23.9K
Total Population
1,175
Density (mi²)
506 2.16%
Growth

Lemont township Population

Lemont township Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202623,9305062.16%
202523,4245062.21%
202422,9185062.26%
202322,412290.13%
202222,383-39-0.17%
202122,422-216-0.95%
202022,638-22-0.1%
201922,2251090.49%
201822,116530.24%
201722,063510.23%
201622,0121590.73%
201521,853990.46%
201421,7541380.64%
201321,6161710.8%
201221,4451410.66%
201121,3041910.9%
201021,142270.13%

Median Age

Overall: 44.5 years
Female: 46.1 years
Male: 43.5 years

Lemont township Adults

There are 16,977 adults, (5,063 of whom are seniors) in Lemont township.

Sex Ratio

Female: 11,146 (49.4%)
Male: 11,418 (50.6%)

Demographics

The racial composition of Lemont township includes 86.37% 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)
White19,48986.37%
Two or more races1,8948.39%
Asian6122.71%
Black or African American3531.56%
Other race2040.9%
Native American120.05%
Race
Population ↓
Percentage (of total)
Two or more races1,5256.76%
White3641.61%
Other race1820.81%
Native American120.05%
Race
Population ↓
Percentage (of total)
White19,12584.76%
Asian6122.71%
Two or more races3691.64%
Black or African American3531.56%
Other race220.1%

Lemont township Marital Status

Economics and Income Statistics

Lemont township 's average per capita income is $77,904. Household income levels show a median of $120,984. The poverty rate stands at 3.94%.

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$167,283-
Families$158,402$183,908
Households$120,984$151,684
Non Families$42,946$59,577

$77,904

Average Income

$120,984

Median Household Income

3.94%

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)