Beijing vs Seoul
Beijing is about 27× larger than Seoul by administrative area. Beijing (China) covers 16,411 km² (6,336 mi²) with a population of 21.9 million, while Seoul (South Korea) covers 605 km² (234 mi²) with 9.7 million residents.
| Metric | Beijing | Seoul |
|---|---|---|
| Area | 16,411 km² | 605 km² |
| Area (mi²) | 6,336 mi² | 234 mi² |
| Population | 21,893,095 | 9,668,465 |
| Population density | 1,334 /km² | 15,974 /km² |
| Area ratio | Beijing is ~27× larger by area than Seoul. | |
Frequently asked questions
Is Beijing bigger than Seoul?
Yes — Beijing is about 27× larger by area: 16,411 km² vs 605 km².
How big is Beijing?
Beijing, China, covers about 16,411 km² (6,336 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, Beijing or Seoul?
Beijing has the larger population: 21.9 million vs 9.7 million. Population density is about 1,334 people/km² in Beijing and 15,974 people/km² in Seoul.
City boundaries from OpenStreetMap. Last updated 2026-08-20.
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