Houston vs Seoul
Houston is about 2.8× larger than Seoul by administrative area. Houston (United States) covers 1,725 km² (666 mi²) with a population of 2.3 million, while Seoul (South Korea) covers 605 km² (234 mi²) with 9.7 million residents.
| Metric | Houston | Seoul |
|---|---|---|
| Area | 1,725 km² | 605 km² |
| Area (mi²) | 666 mi² | 234 mi² |
| Population | 2,304,580 | 9,668,465 |
| Population density | 1,336 /km² | 15,974 /km² |
| Area ratio | Houston is ~2.8× larger by area than Seoul. | |
Frequently asked questions
Is Houston bigger than Seoul?
Yes — Houston is about 2.8× larger by area: 1,725 km² vs 605 km².
How big is Houston?
Houston, United States, covers about 1,725 km² (666 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, Houston or Seoul?
Seoul has the larger population: 9.7 million vs 2.3 million. Population density is about 1,336 people/km² in Houston and 15,974 people/km² in Seoul.
City boundaries from OpenStreetMap. Last updated 2026-08-19.
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