New Lenox, Illinois Demographics & Population 2026
During the 2020–2024 ACS period, New Lenox, Illinois had a total population of 28,006, the 74th largest village in Illinois, with a median household income of $140,865, which is 69% higher than the state average. The poverty rate is 1.5%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 69% above the state average — one of the wealthiest communities in Illinois.
- An exceptionally low poverty rate of 1.5% — among the lowest in Illinois.
- 47.6% of adults hold a bachelor's degree or higher — top 10% in Illinois.
New Lenox Quick Facts
How New Lenox Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 27,456 | 28,006 | +2.0% |
| Median household income | $133,071 | $140,865 | +5.9% |
| Median home value | $377,500 | $399,900 | +5.9% |
How New Lenox Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 61 | National average: 61
Education
Educational Attainment (Adults 25+)
New Lenox Rankings in Illinois
Explore Illinois Rankings
Other Cities in Will County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Joliet | 150,445 | $92,201 | 11.1% | $265,800 |
| Plainfield | 46,708 | $144,000 | 4.2% | $431,400 |
| Romeoville | 41,152 | $106,325 | 5.5% | $257,100 |
| Oswego | 36,375 | $123,792 | 2.6% | $344,500 |
| Lockport | 26,409 | $111,981 | 6.8% | $316,000 |
| Crest Hill | 20,628 | $73,033 | 12.0% | $232,900 |
| Mokena | 20,021 | $123,889 | 4.5% | $401,400 |
| Shorewood | 18,343 | $122,105 | 5.2% | $337,800 |
| Channahon | 13,927 | $119,494 | 5.9% | $327,900 |
| Minooka | 12,891 | $115,445 | 2.6% | $315,600 |
Cities Similar to New Lenox
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Glen Ellyn | 28,390 | $140,938 | $544,000 | 68.2% | 6.3% |
| Algonquin | 30,067 | $134,525 | $351,000 | 43.6% | 4.1% |
| Batavia | 27,151 | $120,056 | $387,400 | 56.5% | 5.5% |
| Vernon Hills | 26,876 | $121,943 | $412,300 | 67.8% | 6.1% |
| Lake in the Hills | 28,800 | $117,151 | $321,900 | 35.8% | 4.1% |
Population Overview
New Lenox is a mid-sized community located in Illinois, within Will County. The total population is 28,006. It ranks as the 74th most populous out of 1,445 Census-designated places in Illinois.
Age Demographics
The median age in New Lenox is 36.8 years. This is 6% lower than the state median of 39.0 years. With 30.0% of the population under 18, New Lenox has a notably young demographic profile, suggesting a family-oriented community.
Economy, Income & Housing
The median household income in New Lenox is $140,865. This is 69% higher than the state median of $83,390. It is also 74% higher than the national median of $80,734. The poverty rate stands at 1.5%. This is 87% lower than the state poverty rate of 11.8%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 2.9%. This is 50% lower than the state rate of 5.8%. The median home value is $399,900. Housing costs are 52% higher than the state median of $263,300. With a home-value-to-income ratio of just 2.8x, New Lenox is one of the most affordable housing markets in the area. 92.5% of occupied housing units are owner-occupied. This homeownership rate is 38% higher than the state average of 67.1%.
Race & Ethnicity
New Lenox has a predominantly White (non-Hispanic) population, comprising 89.0% of all residents. Hispanic or Latino residents account for 5.9%. The White (non-Hispanic) population is significantly higher than the state average (89.0% vs 58.1%). The Black or African American population (0.6%) is well below the state average of 13.3%. The Hispanic or Latino population (5.9%) is well below the state average of 18.8%. The Asian population (0.7%) is well below the state average of 5.9%.
Education
47.6% of residents aged 25 and older hold a bachelor's degree or higher. This places New Lenox in the top 10% of all cities in the state for educational attainment. This is 26% higher than the state rate of 37.9%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 98.4%. Notably, 17.9% of adults hold a graduate or professional degree, indicating a highly educated workforce.
Data Sources & Methodology
All demographic data for New Lenox, Illinois is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Illinois state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,445 Census-designated places in Illinois. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of New Lenox, Illinois?
New Lenox, Illinois has a population of 28,006 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in New Lenox, IL?
The median household income in New Lenox is $140,865, which is 74% higher than the national median of $80,734.
What is the poverty rate in New Lenox, IL?
The poverty rate in New Lenox is 1.5%. This means approximately 421 residents live below the federal poverty line.
What is the racial makeup of New Lenox, Illinois?
New Lenox's population is 89.0% White, 0.6% Black, 5.9% Hispanic/Latino, and 0.7% Asian.
What is the median home value in New Lenox, IL?
The median home value in New Lenox is $399,900. The home-value-to-income ratio is 2.8x.
How educated is New Lenox, Illinois?
47.6% of adults (25+) in New Lenox hold a bachelor's degree or higher, and 17.9% hold a graduate or professional degree.