New Lenox Population 2026
New Lenox has a population of 25,800, making it the #1818 biggest city in 🇺🇸 United States, located in Illinois. It is about 341× smaller than New York City, the country's biggest city.
Population (city proper)
25,800
Rank in United States
#1818
Coordinates
41.51°N, 87.97°W
~204 m elevation · America/Chicago
Distance to capital (Washington)
972 km
604 miles, straight line
Other big cities in Illinois
| City | Population | Rank in United States |
|---|---|---|
| Chicago | 2,664,452 | #3 |
| Aurora | 200,661 | #125 |
| Rockford | 148,278 | #184 |
| Joliet | 147,861 | #186 |
| Naperville | 147,100 | #190 |
| Peoria | 115,070 | #259 |
| Springfield | 114,394 | #262 |
| North Peoria | 113,004 | #266 |
Cities near New Lenox
- Joliet147,861 people · ~10 km away
- Romeoville39,719 people · ~18 km away
- Bolingbrook74,306 people · ~22 km away
- Plainfield42,527 people · ~24 km away
- Downers Grove49,732 people · ~33 km away
- Naperville147,100 people · ~34 km away
FAQ
What is the population of New Lenox?
New Lenox has a population of 25,800 (city proper, latest official figure via GeoNames), making it the #1818 biggest city in United States.
What state is New Lenox in?
New Lenox is located in Illinois, United States.
Is New Lenox the capital of United States?
No, the capital of United States is Washington D.C., about 972 km away.
Sources & notes
Population refers to the city proper (municipal boundaries), not the metropolitan area. Source: GeoNames (CC BY 4.0), retrieved 2026-07-07. Country data: UN World Population Prospects 2024.
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