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LE

Lemont, Cook County, Illinois

Village in Cook County, Illinois · ZIP 60439

  • Cook County
  • Within Lemont Township
  • Census data · ACS 2019-2023
  • 5 public schools
  • 18,203 (2024 estimate)Population
  • 6,334Households
  • $126,100Median household income
  • $447,800Median home value
  • 5Public schools
  • 1ZIP codes

About Lemont

This page shows only what has been published about Lemont: Census facts with their sources first, then its businesses, jobs, events, people in public roles, housing and questions as they are added. Nothing here is written by the town government.

Town intelligenceOfficial sources, refreshed yearly

Population, 2000 to 2020+34.6%
12k14k16k18k2000: 13,09820002010: 16,00020102020: 17,629202013,09817,629
Population of Lemont at each census
CensusPopulation
200013,098
201016,000
202017,629

As counted at each census, within the boundaries the area had then; the current estimate is in the glance card.

Sources: Census 2000 Summary File 1: total population, place level, state 17, retrieved November 14, 2026; Census 2010 Summary File 1: total population, place level, state 17, retrieved November 14, 2026; Census 2020 Redistricting Data (P.L. 94-171): total population, place level, state 17, retrieved November 14, 2026.

Household income in Lemont
Under $50k16.7%
$50k to $100k22.7%
$100k to $150k16.8%
$150k to $200k20.9%
$200k and over22.9%

Median household income $126,100 · Share of households by income, American Community Survey 5-year 2019-2023, table S1901.

Source: American Community Survey 5-year subject table S1901 (household income) 2019–2023, place level, state 17, retrieved November 14, 2026.

Housing tenure in Lemont
Owner occupied
5,524 units
Renter occupied
810 units
Vacancy rate
2.7%

Occupied housing units by tenure and the share of all units vacant, American Community Survey 5-year 2019-2023, table DP04.

Source: American Community Survey 5-year data profile 2019–2023, place level, state 17, retrieved November 14, 2026.

Lemont compared with its county and state
Lemont compared with its county and state, American Community Survey 2019-2023
MeasureLemontCook CountyIllinois
Population17,6435,185,81212,692,653
Median household income$126,100$81,797$81,702
Median age43.737.838.9
Median home value$447,800$305,200$250,500
Bachelor’s degree or higher45.6%41.9%37.2%
Foreign-born residents15.4%21.4%14.4%
Owner-occupied homes87.2%57.5%66.8%
Mean commute to work35.3 minutes31.9 minutes28.1 minutes

Source: American Community Survey 5-year data profile 2019–2023, place level, state 17, retrieved November 14, 2026.

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Schools

Public schools in Lemont5
Public schools in Lemont, NCES directory 2023–2024
SchoolTypeGradesDistrict
Central SchoolPublic4–5Lemont-Bromberek CSD 113A
Oakwood SchoolPublicPre-K–1Lemont-Bromberek CSD 113A
River Valley SchoolPublic2–3Lemont-Bromberek CSD 113A
Old Quarry Middle SchPublic6–8Lemont-Bromberek CSD 113A
Lemont Twp High SchoolPublic9–12Lemont Twp HSD 210

Open public schools in the NCES directory for 2023–2024, placed by their listed location; private schools are not in the source. Enrollment and ratings are not shown.

Sources: NCES Common Core of Data, public school directory 2023–2024, retrieved November 14, 2026; NCES EDGE public school geocodes 2024–2025, retrieved November 14, 2026.

Frequently asked about LemontPromoted from questions people asked

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Nearby towns

Other towns in Cook County

All towns in Cook County

Other places named Lemont in Illinois