List of cities in South Korea by population List of cities List of cities

| Rank_ | Municipality | Population_2010_Census | Population_2005_Census | Population_2000_Census |
|---|---|---|---|---|
| 1 | Seoul | 9794304 | 9762546 | 9853972 |
| 2 | Busan | 3414950 | 3512547 | 3655437 |
| 3 | Incheon | 2662509 | 2590863 | 2466338 |
| 4 | Daegu | 2446418 | 2456016 | 2473990 |
| 5 | Daejeon | 1501859 | 1438551 | 1365961 |
| 6 | Gwangju | 1469293 | 1413644 | 1350948 |
| 7 | Ulsan | 1082567 | 1044934 | 1012110 |
| 8 | Suwon | 1071913 | 1039233 | 944239 |
| 9 | Changwon | 1058021 | 1075326 | 1076448 |
| 10 | Seongnam | 949964 | 931019 | 912222 |
| 11 | Goyang | 905076 | 864402 | 762598 |
| 12 | Yongin | 856765 | 686842 | 384741 |
| 13 | Bucheon | 853039 | 833931 | 757832 |
| 14 | Ansan | 728775 | 669839 | 554998 |
| 15 | Cheongju | 666924 | 640631 | 585622 |
| 16 | Jeonju | 649728 | 622092 | 615804 |
| 17 | Anyang | 602122 | 609886 | 578845 |
| 18 | Cheonan | 574623 | 518171 | 415818 |
| 19 | Namyangju | 529898 | 424446 | 339545 |
| 20 | Pohang | 511390 | 488433 | 515187 |