Seoul vs Madrid
Seoul is about 1.0× larger than Madrid by administrative area. Seoul (South Korea) covers 605 km² (234 mi²) with a population of 9.7 million, while Madrid (Spain) covers 604 km² (233 mi²) with 3.5 million residents.
| Metric | Seoul | Madrid |
|---|---|---|
| Area | 605 km² | 604 km² |
| Area (mi²) | 234 mi² | 233 mi² |
| Population | 9,668,465 | 3,506,730 |
| Population density | 15,974 /km² | 5,801 /km² |
| Area ratio | Seoul is ~1.0× larger by area than Madrid. | |
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Both outlines are drawn at the same scale.
Frequently asked questions
Is Seoul bigger than Madrid?
Yes — Seoul is about 1.0× larger by area: 605 km² vs 604 km².
How big is Seoul?
Seoul, South Korea, covers about 605 km² (234 mi²) of administrative area.
How big is Madrid?
Madrid, Spain, covers about 604 km² (233 mi²) of administrative area.
Which city has more people, Seoul or Madrid?
Seoul has the larger population: 9.7 million vs 3.5 million. Population density is about 15,974 people/km² in Seoul and 5,801 people/km² in Madrid.
City boundaries from OpenStreetMap. Last updated 2026-10-08.
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