About Seongnam-si
Seongnam-si is a mid-sized city located in South Korea, in the Busan region. According to the latest available data (2026), the population of Seongnam-si is approximately 914,832 residents, making it the #13 most populous city in South Korea.
Globally, Seongnam-si ranks #1,982 among the world's most populated cities.
Seongnam-si City Statistics
| City | Seongnam-si |
| Country |  South Korea |
| Population | 914,832 |
| Global Rank | #1,982 |
| Rank in South Korea | #13 of 136 cities |
| City Category | mid-sized city |
| Region | Busan |
| Latitude | 37.4386 |
| Longitude | 127.1378 |
| Data Year | 2026 |
Population Comparison
To put Seongnam-si's population of 914,832 into perspective:
- Seongnam-si has over 914,000 residents.
Where is Seongnam-si Located?
Seongnam-si is located in South Korea, in the Busan region, at coordinates 37.4386° latitude and 127.1378° longitude. Seongnam-si sits in the subtropics, typically enjoying warm temperatures year-round.
Nearby Cities
Other Cities in South Korea
Largest Cities in South Korea
| # | City | Population |
|---|---|---|
| 1 | Busan | 3,453,198 |
| 3 | Suwon | 1,234,300 |
| 4 | Ulsan | 1,127,553 |
| 5 | Yongin | 1,084,817 |
| 6 | Goyang | 1,061,929 |
Frequently Asked Questions
What is the population of Seongnam-si?
The population of Seongnam-si is approximately 914,832 residents according to the latest available data (2026).
Where is Seongnam-si located?
Seongnam-si is located in South Korea at approximately 37.4386° latitude and 127.1378° longitude.
Is Seongnam-si one of the largest cities in South Korea?
With a population of 914,832, Seongnam-si is one of the notable urban areas in South Korea. It ranks #13 out of 136 cities in the country.
