Oswego Population 2026
Oswego has a population of 33,955, making it the #1345 biggest city in 🇺🇸 United States, located in Illinois. It is about 259× smaller than New York City, the country's biggest city.
Population (city proper)
33,955
Rank in United States
#1345
Coordinates
41.68°N, 88.35°W
~195 m elevation · America/Chicago
Distance to capital (Washington)
1,008 km
626 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 Oswego
- Aurora200,661 people · ~9 km away
- Yorkville18,451 people · ~9 km away
- Plainfield42,527 people · ~14 km away
- Batavia26,495 people · ~19 km away
- Naperville147,100 people · ~20 km away
- Romeoville39,719 people · ~22 km away
FAQ
What is the population of Oswego?
Oswego has a population of 33,955 (city proper, latest official figure via GeoNames), making it the #1345 biggest city in United States.
What state is Oswego in?
Oswego is located in Illinois, United States.
Is Oswego the capital of United States?
No, the capital of United States is Washington D.C., about 1,008 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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