Changwon's 2025 population is now estimated at 1,056,980. In 1950, the population of Changwon was 89,784. Changwon has grown by 1,610 in the last year, which represents a 0.15% annual change.These population estimates and projections come from the latest revision of the UN World Urbanization Prospects. These estimates represent the Urban agglomeration of Changwon, which typically includes Changwon's population in addition to adjacent suburban areas.
| City | 2025 Pop. ↓ | Growth |
|---|---|---|
| Seoul | 10,025,800 | 0.21% |
| Busan | 3,484,430 | 0.2% |
| Incheon | 2,873,700 | 0.42% |
| Daegu | 2,181,080 | 0.05% |
| Daejon | 1,586,180 | 0.28% |
| Gwangju | 1,536,730 | 0.25% |
| Suweon | 1,388,800 | 0.77% |
| Yongin | 1,157,920 | 0.87% |
| Goyang | 1,121,440 | 0.66% |
| Changwon | 1,056,980 | 0.15% |
| Seongnam | 943,458 | 0.14% |
| Ulsan | 916,236 | 0.21% |
| Bucheon | 827,603 | 0.08% |
| Ansan | 771,029 | 0.29% |
| Cheongju | 732,667 | 0.38% |
| Cheonan | 713,308 | 0.66% |
| Jeonju | 667,908 | 0.22% |
| Anyang | 559,645 | -0.02% |
| Siheung | 450,758 | 0.4% |
| Uijeongbu | 425,996 | 0.2% |
| Gumi | 401,111 | 0.54% |
| Pohang | 367,474 | 0.39% |
| Gwangmyeong | 351,246 | 0.31% |
| Jeju | 349,801 | 0.35% |
| Gimhae | 320,026 | 0.33% |