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Lemont

A village of 17,820 people in Illinois
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About Lemont

Village in Illinois, United States
1836Established
17,629Population
8.6 sq miArea
607 ftElevation

Lemont is a village located in Cook, DuPage, and Will counties in the U.S. state of Illinois, and is a south-west suburb of Chicago. The population was 17,629 as of the 2020 census. The village is situated on a hillside along the south banks of the Des Plaines River. It overlooks Waterfall Glen's Midwestern Bluff Savanna on the opposite side. The Lemont area is home to Argonne National Laboratory and other heavy industrial sites, and has a substantial European immigrant population.

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From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)

Town numbers

ZIP code60439
Area code630
Living in Lemont

Housing in Lemont

$655K Median sale price · Redfin, May 2026

The median sale price was $655,000 in May 2026.

A balanced market

Buyer’sBalancedSeller’s
Days on market35
Sale-to-list102.6%
Sold in May10
Zillow Home Value Index · Redfin Data CenterHousing market →

Safety in Lemont

A−

Safety Grade A-

Lemont reports less crime per resident than 84% of the U.S. towns and cities we grade.

Violent crime per 1,000
Lemont 0.5
Illinois 2.6
U.S. 3.3
Property crime per 1,000
Lemont 4.6
Illinois 15.6
U.S. 15.5
FBI crime data, 2025 · crimes reported to policeCrime & safety →
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Lemont

Illinois · IL
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Boundary source: https://tigerweb.geo.census.gov/arcgis/rest/services/TIGERweb/Places_CouSub_ConCity_SubMCD/MapServer/18 · 2025-01-01