Chicago vs Seoul
Chicago is about 1.0× larger than Seoul by administrative area. Chicago (United States) covers 606 km² (234 mi²) with a population of 2.7 million, while Seoul (South Korea) covers 605 km² (234 mi²) with 9.7 million residents.
| Metric | Chicago | Seoul |
|---|---|---|
| Area | 606 km² | 605 km² |
| Area (mi²) | 234 mi² | 234 mi² |
| Population | 2,746,388 | 9,668,465 |
| Population density | 4,529 /km² | 15,974 /km² |
| Area ratio | Chicago is ~1.0× larger by area than Seoul. | |
Frequently asked questions
Is Chicago bigger than Seoul?
Yes — Chicago is about 1.0× larger by area: 606 km² vs 605 km².
How big is Chicago?
Chicago, United States, covers about 606 km² (234 mi²) of administrative area.
How big is Seoul?
Seoul, South Korea, covers about 605 km² (234 mi²) of administrative area.
Which city has more people, Chicago or Seoul?
Seoul has the larger population: 9.7 million vs 2.7 million. Population density is about 4,529 people/km² in Chicago and 15,974 people/km² in Seoul.
City boundaries from OpenStreetMap. Last updated 2026-08-26.
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