Lemont, IL demographics:
population, income, and more

Total population
17,820
1.0% year-over-year change
Median household income
$123,370/yr
-2.2% year-over-year change
Housing units
6,645
2.0% year-over-year change

Lemont population

How many people live in Lemont

Lemont is home to 17,820 residents, according to the most recent Census data. Gender-wise, 50.3% of Lemont locals are male, and 49.7% are female.

Total population
17,820
1.0% year-over-year change
Gender ratio
Male
50.3%
8,958
Female
49.7%
8,862
Value Percent YoY change
Male 8,958 50.3% -0.8%
Female 8,862 49.7% 2.9%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Lemont is 44, with the population distributed as follows: about 21.1% are children under 15, then 10.1% are in the 15 to 24 age group. Adults between 25 and 44 make up 21.4% of the population, while another 26.6% fall into the 45 to 64 bracket. Finally, around 20.8% are 65 or older.

Median age
43.7
Age breakdown
Under 15
21.1%
15 to 24
10.1%
25 to 44
21.4%
45 to 64
26.6%
Over 65
20.8%
Value Percent YoY change
Under 15 3,766 21.1% 6.7%
15 to 24 1,793 10.1% -7.8%
25 to 44 3,810 21.4% -1.0%
45 to 64 4,736 26.6% -3.1%
Over 65 3,715 20.8% 8.2%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In Lemont, 81.4% of the population are US-born citizens, while 14.1% have gained naturalized citizenship. At the same time, 4.4% of residents are non-citizens. As for race, 86.3% of locals are Caucasian, 1.7% are African American and 2.8% have Asian roots. There’s also a share of 8.1% that includes residents with two or more races.

Citizenship
U.S.-born citizens
81.4%
Non-U.S.-born citizens
14.1%
Non-citizens
4.4%
Value Percent YoY change
U.S.-born citizens 14,512 81.4% -1.9%
Non-U.S.-born citizens 2,518 14.1% 11.6%
Non-citizens 790 4.4% 31.7%
Racial breakdown
White
86.3%
Black or African American
1.7%
American Indian and Alaska Native
0%
Asian
2.8%
Native Hawaiian and other Pacific Islander
0%
Two or more races
8.1%
Other
1.1%
Value Percent
White 15,381 86.3%
Black or African American 296 1.7%
Asian 502 2.8%
Two or more races 1,437 8.1%
Other 204 1.1%

Households in Lemont

A peek inside Lemont households

Lemont has 6,412 households, with an average of 3 members in each. Of these, 75.2% are families, while the remaining 24.8% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
6,412
1.2% year-over-year change
Average people per household
3
Non-family households
1,589
Family households
4,823
Value Percent YoY change
Non-family households 1,589 24.8% -6.6%
Family households 4,823 75.2% 4.1%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Lemont

The housing landscape of Lemont

Lemont's housing consists of 6,645 units, with 75.4% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 15% and offer a more compact, shared living style.

Housing units
6,645
2.0% year-over-year change
Housing types
Value Percent
1 unit, detached 5,008 75.4%
1 unit, attached 1,000 15%
2 units 76 1.1%
3 or 4 units 259 3.9%
5 to 9 units 35 0.5%
10 to 19 units 115 1.7%
20 to 49 units 15 0.2%
50 or more units 137 2.1%
Homes built since 2020
112
103.6% year-over-year change

The age of buildings in Lemont

In Lemont, the median construction year is 1995. About 7.8% of homes were built before the 1940s, with another 2.2% going up by 1949. Most development happened in the second half of the 20th century. Then, 23.3% of homes were added from 2000 to 2009, 13.2% between 2010 and 2019, and 1.7% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 518 7.8% -12.8%
Built between 1940 and 1949 148 2.2% -6.3%
Built between 1950 and 1959 214 3.2% 3.4%
Built between 1960 and 1969 258 3.9% 24.6%
Built between 1970 and 1979 491 7.4% 1.4%
Built between 1980 and 1989 832 12.5% -5.1%
Built between 1990 and 1999 1,649 24.8% -3.3%
Built between 2000 and 2009 1,548 23.3% 11.6%
Built between 2010 and 2019 875 13.2% 4.3%
Built in 2020 or later 112 1.7% 103.6%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Lemont occupancy rates

Out of the 6,412 occupied housing units in Lemont, 87.6% are owner-occupied, while 12.4% are lived in by tenants. Meanwhile, 3.5% of all homes on the local market sit vacant.

Occupied housing units
6,412
1.2% year-over-year change
Occupancy breakdown
Renter occupied
795
Owner occupied
5,617
Value Percent YoY
change
Renter occupied 795 12.4% -1.9%
Owner occupied 5,617 87.6% 1.7%
Unoccupied housing units
3.5%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Lemont housing costs

Housing costs in Lemont come to a median of $1,678 per month, while tenants specifically pay a median gross rent of $1,209.

Median housing costs per month
$1,678/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in Lemont
$1,209/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in Lemont

Lemont education at a glance

About 23% of the population in Lemont went to high school, while 20.8% pursued college studies. Another 8.7% earned an associate degree and 26.5% hold a bachelor’s. Meanwhile, 18.1% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 374 2.8% -9.0%
High school diploma 3,075 23% -3.9%
College diploma 2,783 20.8% -2.0%
Associate degree 1,164 8.7% -1.4%
Bachelor's degree 3,544 26.5% 0.7%
Graduate degree 2,420 18.1% 10.0%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Lemont

How much people earn in Lemont

The average annual household income in Lemont was $150,039 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +2.6% change from the previous year. At the same time, the median income stood at $123,370, reflecting a -2.2% shift over the same period.

Average household income in Lemont
$150,039/year
2.6% year-over-year change
Median household income in Lemont
$123,370/year
-2.2% year-over-year change

Lemont income by age

In Lemont, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $158,333. Those with someone between 45 and 64 in charge, often well established professionally, earn $166,083 overall. Overall, 96.9% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
25 - 44 $158,333 5.1%
45 - 64 $166,083 3.4%
Over 65 $67,847 -2.1%
Above poverty level
16,819
Below poverty level
541
Value Percent YoY
change
Above poverty level 16,819 96.9% 0.8%
Below poverty level 541 3.1% -0.9%

Employment in Lemont

Workforce and job types in Lemont

The job market in Lemont is powered by 8,357 working residents, spread across a range of industries and roles. 85.4% of the working population are employed in professional or administrative positions, while 14.6% are in hands-on or service-based jobs. Also, 11.5% run their own businesses, 58.5% are employed by private companies, and 17.8% work in the public sector.

Workforce demographics

Working population
8,357
-2.8% year-over-year change
White collar
7,137
Blue collar
1,220
Value Percent YoY change
White collar 7,137 85.4% -2.1%
Blue collar 1,220 14.6% -6.8%
Employer type
Self employees
11.5%
Private companies
58.5%
Governmental workers
17.8%
Not for profit companies
12.1%
Value Percent YoY change
Self employees 960 11.5% 6.0%
Private companies 4,892 58.5% -8.3%
Governmental workers 1,491 17.8% 6.0%
Not for profit companies 1,014 12.1% 6.8%
Unemployment rate
4.6%
1.8% year-over-year change

Available workforce

The unemployment rate in Lemont stands at 4.6%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in Lemont

How people get around in Lemont

In Lemont, the average commute time is 35 minutes. Commuting methods vary: 75.1% of residents travel by personal vehicle and 3.9% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Commute time
35 min
Means of transportation
Value Percent YoY change
Car 6,103 75.1% -8.7%
Railroad 246 3% 16.0%
Ferryboat 17 0.2% 0.0%
Walk 317 3.9% 31.5%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Lemont by zipcode?

Zipcode Population Number of households Median income Average income
60439 24,192 8,794 $121,724 $153,312

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FAQs about Lemont demographics 

What is the total population of Lemont?

Lemont has a total population of 17,820 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by +1.0% compared to a year ago.

What is the gender ratio in Lemont?

The gender ratio in Lemont is as follows:
  • 50.3% males (8,958 residents)
  • 49.7% females (8,862 residents)

What is the median age in Lemont?

The median age in Lemont is 43.7.

What is the age distribution of the population in Lemont?

The age distribution in Lemont is as follows:
  • Under 15: 21.1% (3,766 residents)
  • Ages 15-24: 10.1% (1,793 residents)
  • Ages 25-44: 21.4% (3,810 residents)
  • Ages 45-64: 26.6% (4,736 residents)
  • Over 65: 20.8% (3,715 residents)

What is the racial and ethnic makeup of Lemont?

The racial and ethnic makeup of Lemont is as follows:
  • White: 86.3% (15,381 residents)
  • Black or African American: 1.7% (296 residents)
  • American Indian and Alaska Native: 0% (0 residents)
  • Asian: 2.8% (502 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 8.1% (1,437 residents)
  • Other: 1.1% (204 residents)

What percentage of the population in Lemont are U.S.-born citizens?

U.S.-born citizens represent 81.4% of the population in Lemont.

How many housing units are there in Lemont?

There are 6,645 housing units in Lemont, reflecting a +2.0% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Lemont and what is the average household size?

Lemont has a total of 6,412 households, with an average of 3 people in each.

What is the median household income in Lemont?

Lemont has a median household income of $123,370, representing a -2.2% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for Lemont?

The employment rate is 95.4% in Lemont, with a workforce of 8,357 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 85.4% (7,137 residents)
  • Blue-collar workers: 14.6% (1,220 residents)

Places of employment:
  • Self-employed: 11.5% (960 residents)
  • Private companies: 58.5% (4,892 residents)
  • Governmental workers: 17.8% (1,491 residents)
  • Not-for-profit companies: 12.1% (1,014 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025