Taebaek's 2025 population is now estimated at 38,587. In 2000, the population of Taebaek was 54,164. Taebaek experienced a decrease of -8,128 residents over the past year, marking an annual decline of -1.89%.
| 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% |
| Daejeon | 1,538,394 | 1.01% |
| Gwangju | 1,536,730 | 0.25% |
| Gwangju | 1,536,730 | 0.25% |
| Suwon | 1,194,313 | 1.03% |
| Changwon | 1,056,980 | 0.15% |
| Ulsan | 916,236 | 0.21% |
| Cheonan | 713,308 | 0.66% |
| Jeonju | 667,908 | 0.22% |
| Namyangju | 629,061 | 1.04% |
| Gumi | 401,111 | 0.54% |
| Pohang | 367,474 | 0.39% |
| Wonju | 330,854 | 1.01% |
| Asan | 319,929 | 1.03% |
| Iksan | 301,723 | 1% |
| Yangsan | 297,532 | 1.04% |
| Chuncheon | 281,596 | 1.01% |
| Gunsan | 275,155 | 1.01% |
| Yeosu | 273,761 | 1% |
| Suncheon | 265,390 | 1.01% |
| Gyeongju | 262,310 | 1.01% |
| Mokpo | 239,524 | 0.99% |
| Gangneung | 215,677 | 1% |
| Osan | 213,840 | 1.03% |
| Yangju | 205,988 | 1.02% |
| Sejong | 204,088 | 1.2% |
| Anseong | 194,765 | 1.02% |
| Seosan | 169,221 | 1.02% |
| Andong | 168,581 | 1% |
| Hanam | 154,838 | 1.02% |
| Seogwipo | 153,861 | 1.03% |
| Gimcheon | 137,540 | 1.02% |
| Nonsan | 124,246 | 1.01% |
| Gongju | 113,542 | 0.99% |
| Jeongeup | 110,627 | 1% |
| Yeoju | 109,937 | 1.02% |
| Miryang | 103,069 | 1.01% |
| Sangju | 98,760 | 1% |
| Naju | 92,582 | 1.04% |
| Sokcho | 79,846 | 1% |
| Mungyeong | 71,863 | 1.01% |