Westmont, Illinois Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Westmont, Illinois is 24,201 as of the 2023 American Community Survey, making it the 94th-largest city in Illinois. The median household income is $83,622, the median home value is $369,100, and the median age is 42.5.
The population has declined 1.5% since 2010 (24,690 → 24,308).
24,201
Population
4808
People / sq mi
$83,622
Median Income
$369,100
Median Home Value
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Westmont covers 5.0 sq mi of land at 4808 people per square mile.
About Westmont, IL
Westmont stands apart on settlement density — it is among the most densely settled of US cities, at roughly 4,808 people per square mile. With 24,201 residents, Westmont is a city in Illinois.
Median household income is $83,622, above the US median of $78,538. About 7.2% of residents live below the federal poverty level, below the national 12.4%. Median home value is $369,100, with typical rent around $1,427.
Educational attainment is on the higher side for US cities — 49.3% of adults hold a four-year degree, above the national 35.0%. Remote work is on the higher side at 19.6%, above the national 14.0%, and the average commute runs about 25 minutes each way.
That density explains much of the rest of the profile in Westmont: denser places lean toward renting, shorter commutes by transit, and a younger working-age mix.
Westmont village Population History (2010-2024)
The city of Westmont village had a population of 24,690 in 2010 and 24,308 in 2024, a -1.5% growth over 14 years. The peak was 24,989 in 2014. Average annual growth rate: -0.11%.
24,308
Population (2024)
24,690
Population (2010)
24,989
Peak (2014)
-0.11%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 24,690 |
| 2011 | 24,817 |
| 2012 | 24,892 |
| 2013 | 24,981 |
| 2014 | 24,989 |
| 2015 | 24,970 |
| 2016 | 24,850 |
| 2017 | 24,768 |
| 2018 | 24,618 |
| 2019 | 24,443 |
| 2020 | 24,412 |
| 2021 | 24,232 |
| 2022 | 24,091 |
| 2023 | 24,141 |
| 2024 | 24,308 |
Race & Ethnicity
| White | 66.2% |
| Black or African American | 6.6% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.9% |
| Two or More Races | 0.0% |
Economy & Income
$83,622
Median Household Income
$54,524
Per Capita Income
7.2%
Poverty Rate
2.5%
Unemployment Rate
Housing
$369,100
Median Home Value
$1,427
Median Rent
54.9%
Owner-Occupied
Education
95.4%
High School+
49.3%
Bachelor's+
Commute
4.3%
Drive Alone
69.6%
Public Transit
19.6%
Work From Home
25.4 min
Avg Commute
Community Profile
14.7%
Foreign Born
69.4%
Non-English at Home
3.6%
Veterans
10.3%
With Disability
93.7%
Health Insurance
95.3%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 23.2% |
| Finance, Insurance & Real Estate | 17.8% |
| Education, Health Care & Social Services | 10.4% |
| Manufacturing | 8.6% |
| Information | 8.0% |
| Retail Trade | 7.3% |
| Construction | 4.3% |
| Arts, Entertainment & Food Services | 3.3% |
| Public Administration | 3.3% |
| Transportation & Warehousing | 2.4% |
| Agriculture & Mining | 0.5% |
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City rankings
Frequently Asked Questions
Westmont, Illinois has a population of 24,201 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 94th-largest city in Illinois.
The median household income in Westmont, Illinois is $83,622, with 7.2% of residents living below the federal poverty level.
The median home value in Westmont, Illinois is $369,100, with median monthly rent at $1,427 and a homeownership rate of 54.9%.
The median age in Westmont, Illinois is 42.5 years. The population is 46.6% male and 53.4% female.
The population has declined 1.5% since 2010 (24,690 → 24,308).
Where to stay in Westmont
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.