Romeoville Population 2026
Romeoville has a population of 39,719, making it the #1123 biggest city in 🇺🇸 United States, located in Illinois. It is about 222× smaller than New York City, the country's biggest city.
Population (city proper)
39,719
Rank in United States
#1123
Coordinates
41.65°N, 88.09°W
~189 m elevation · America/Chicago
Distance to capital (Washington)
986 km
612 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 Romeoville
- Bolingbrook74,306 people · ~6 km away
- Plainfield42,527 people · ~10 km away
- Joliet147,861 people · ~14 km away
- Naperville147,100 people · ~16 km away
- New Lenox25,800 people · ~18 km away
- Downers Grove49,732 people · ~19 km away
FAQ
What is the population of Romeoville?
Romeoville has a population of 39,719 (city proper, latest official figure via GeoNames), making it the #1123 biggest city in United States.
What state is Romeoville in?
Romeoville is located in Illinois, United States.
Is Romeoville the capital of United States?
No, the capital of United States is Washington D.C., about 986 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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