Gyeonggi-do · South Korea
Seongnam-si population
914,832people · latest figure
Seongnam-si has a population of 914,832, making it the 11th largest place we list in South Korea. It is in Gyeonggi-do.
Seongnam-si holds 1.8% of South Korea's 51,600,388 people. Seoul, the largest place we list there, is 11 times its size.
914,832
population
#11
in South Korea
Nearby in size
| Place | Region | Population |
|---|---|---|
| Ulsan | Ulsan | 1,098,421 |
| Goyang-si | Gyeonggi-do | 1,061,752 |
| Changwon | Gyeongsangnam-do | 1,025,702 |
| Cheongju-si | North Chungcheong | 852,147 |
| Bucheon-si | Gyeonggi-do | 850,731 |
| Cheonan | Chungcheongnam-do | 658,831 |
Figures are the latest available in GeoNames (CC BY 4.0), which draws on national censuses of varying dates — treat them as recent, not same-year. Country totals are UN World Population Prospects 2024 (medium variant) where the UN lists the country separately; the handful it reports under a parent state keep a GeoNames figure and are marked as such. Sources & method.