New Lenox, Illinois Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of New Lenox, Illinois is 27,456 as of the 2023 American Community Survey, making it the 76th-largest city in Illinois. The median household income is $133,071, the median home value is $377,500, and the median age is 37.3.
The population has grown 17.0% since 2010 (24,337 → 28,480).
27,456
Population
1709
People / sq mi
$133,071
Median Income
$377,500
Median Home Value
Get New Lenox's next ACS population data
Subscribe for Population Review updates by email. No spam, unsubscribe anytime.
New Lenox covers 16.1 sq mi of land at 1709 people per square mile.
About New Lenox, IL
Homeownership is the standout figure in New Lenox: 91.2% of homes are owner-occupied, higher than the national rate. With 27,456 residents, New Lenox is a city in Illinois.
The typical household earns $133,071 a year, above the US median of $78,538. Very few residents live in poverty — 1.7%, below the national 12.4%. The typical home is valued at $377,500, with typical rent around $1,244.
Educational attainment is on the higher side for US cities — 45.5% of adults hold a four-year degree, above the national 35.0%. Remote work is close to the national 14.0% at 14.2%, and the average commute runs about 33 minutes each way.
The ownership rate anchors the housing story in New Lenox, and tends to move with the age structure and home-value figures above.
New Lenox village Population History (2010-2024)
The city of New Lenox village had a population of 24,337 in 2010 and 28,480 in 2024, a 17.0% growth over 14 years. The peak was 28,480 in 2024. Average annual growth rate: 1.13%.
28,480
Population (2024)
24,337
Population (2010)
28,480
Peak (2024)
1.13%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 24,337 |
| 2011 | 24,405 |
| 2012 | 24,586 |
| 2013 | 24,849 |
| 2014 | 25,288 |
| 2015 | 25,661 |
| 2016 | 26,082 |
| 2017 | 26,456 |
| 2018 | 26,727 |
| 2019 | 26,926 |
| 2020 | 27,243 |
| 2021 | 27,505 |
| 2022 | 27,633 |
| 2023 | 28,130 |
| 2024 | 28,480 |
Race & Ethnicity
| White | 91.2% |
| Black or African American | 0.3% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.6% |
| Two or More Races | 0.0% |
Economy & Income
$133,071
Median Household Income
$48,850
Per Capita Income
1.7%
Poverty Rate
2.1%
Unemployment Rate
Housing
$377,500
Median Home Value
$1,244
Median Rent
91.2%
Owner-Occupied
Education
98.3%
High School+
45.5%
Bachelor's+
Commute
3.5%
Drive Alone
75.7%
Public Transit
14.2%
Work From Home
32.8 min
Avg Commute
Community Profile
8.9%
Foreign Born
96.7%
Non-English at Home
4.5%
Veterans
5.6%
With Disability
98.2%
Health Insurance
98.1%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 26.1% |
| Finance, Insurance & Real Estate | 12.2% |
| Manufacturing | 10.1% |
| Information | 7.8% |
| Education, Health Care & Social Services | 7.4% |
| Construction | 6.9% |
| Retail Trade | 6.6% |
| Arts, Entertainment & Food Services | 4.7% |
| Public Administration | 3.7% |
| Transportation & Warehousing | 1.1% |
| Agriculture & Mining | 0.5% |
Largest cities in Illinois
Largest counties in Illinois
Part of Illinois
Metro areas in Illinois
City rankings
Frequently Asked Questions
New Lenox, Illinois has a population of 27,456 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 76th-largest city in Illinois.
The median household income in New Lenox, Illinois is $133,071, with 1.7% of residents living below the federal poverty level.
The median home value in New Lenox, Illinois is $377,500, with median monthly rent at $1,244 and a homeownership rate of 91.2%.
The median age in New Lenox, Illinois is 37.3 years. The population is 51.5% male and 48.5% female.
The population has grown 17.0% since 2010 (24,337 → 28,480).
New Lenox village, IL Climate
New Lenox village, IL has an average annual temperature of 9.6°C (49°F) and receives about 949 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
9.6°C
Avg Temp
949
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -6° / 21° | 39 mm |
| February | -3° / 27° | 37 mm |
| March | 3° / 37° | 69 mm |
| April | 9° / 49° | 100 mm |
| May | 15° / 60° | 99 mm |
| June | 21° / 69° | 106 mm |
| July | 23° / 74° | 99 mm |
| August | 22° / 72° | 97 mm |
| September | 18° / 64° | 92 mm |
| October | 11° / 52° | 69 mm |
| November | 4° / 40° | 78 mm |
| December | -2° / 28° | 64 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit New Lenox village, IL
The most comfortable months to visit New Lenox village, IL are typically June, August and July, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 29°C high). The coldest is January (near -10°C low). June is usually the wettest month.
Where to stay near New Lenox
Visiting or relocating to New Lenox, IL? Compare hotels and short-term rentals across the metro — live availability and prices.
Top-rated places to stay near New Lenox
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a move to New Lenox?
Get relocation and cost-of-living insights for New Lenox, IL by email. No spam, unsubscribe anytime.
More from Illinois
Population 2,707,648
Population 179,867
Population 149,785
Population 149,424
Population 147,649
Full rankings of Illinois cities by population
Statewide data for Illinois
Population, race, income, age, and trends across Illinois
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.