Lemont, IL
Population 17,643 · Illinois
About Lemont, IL
Lemont is a mid-sized city in Illinois with a population of 17,643 residents. The median household income is $126,100 per year, which is above the national average. The median age in Lemont is 43.7 years.
Housing in Lemont has a median home value of $447,800 and median monthly rent of $1,211. Of the 6,513 total housing units, the majority are owner-occupied, with 5,524 owner-occupied and 810 renter-occupied units.
The unemployment rate in Lemont is 4.3% and the poverty rate is 3.1%. 45.6% of residents hold a bachelor's degree or higher. The average commute time is 35.3 minutes.
Cost of Living in Lemont, IL
Compared to national averages, Lemont has a median household income of $126,100 (68% above the national median of $75,149). Home values average $447,800, which is 83% above the national median. Monthly rent at $1,211 is 4% above the US average of $1,163. Within Illinois, Lemont's income is 68% above the state average of $75,072, and home values are 170% above the state median of $165,779.
Why Live in Lemont, IL?
Lemont offers a strong local economy with a median household income of $126,100, well above the national average, and a well-educated community where 45.6% of residents hold a bachelor’s degree or higher, and a low poverty rate of 3.1%, better than the national average.
Potential considerations include a competitive housing market where the typical home costs $447,800. However, Lemont’s smaller community size offers a quieter lifestyle and tight-knit neighborhoods.
Lemont has a population of 17,643 with a median age of 43.7 years. Compare Lemont with other cities to see how it stacks up, or explore all cities in Illinois.
Similar Cities Near Lemont
Cities in Illinois with a similar population size.
| City | Population | Median Income | Home Value | |
|---|---|---|---|---|
| Godfrey | 17,743 | $92,746 | $181,400 | Compare |
| Jacksonville | 17,490 | $62,615 | $128,300 | Compare |
| Cary | 17,875 | $109,790 | $287,000 | Compare |
| Charleston | 17,212 | $49,057 | $133,700 | Compare |
| Bourbonnais | 18,109 | $81,017 | $242,600 | Compare |
| Cahokia Heights | 17,173 | $37,975 | $56,900 | Compare |
| Hinsdale | 17,155 | $250,001 | $999,100 | Compare |
| Palos Hills | 18,139 | $83,969 | $259,200 | Compare |
Demographics
Racial & Ethnic Composition
Economy & Education
Housing
Other Cities in Illinois
Data source: US Census Bureau ACS 5-Year Estimates. Last updated: 2026-04-05.
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Frequently Asked Questions about Lemont
What is the population of Lemont, IL?
The population of Lemont, IL is 17,643 according to the latest Census data.
What is the median household income in Lemont?
The median household income in Lemont, IL is $126,100 per year.
What is the median home value in Lemont?
The median home value in Lemont, IL is $447,800.
What is the average rent in Lemont?
The median monthly rent in Lemont, IL is $1,211.
What is the unemployment rate in Lemont?
The unemployment rate in Lemont, IL is 4.3%.