Age composition in 2026:
| Taiwan | South Korea | |
|---|---|---|
| Young Population | 11.28%2,596,173 | 9.82%5,065,881 |
| Working Age Population | 67.78%15,597,335 | 68.75%35,474,901 |
| Elderly Population | 20.94%4,817,784 | 21.43%11,059,607 |
In 2026, the median age is 46.4 years in Taiwan and 47.2 years in South Korea.South Korea already reached Taiwanโs current median age in 2025, about 1 years ahead in population aging.
The total population of Taiwan peaks in 2019 at 23,674,137.The total population of South Korea peaks in 2020 at 51,858,481.
By 2050, the dependency ratio of Taiwan will be 88.6%, and 38.74% of the population will be elderly.By 2050, the dependency ratio of South Korea will be 90.5%, and 39.68% of the population will be elderly.
| Taiwan | South Korea | ||
|---|---|---|---|
| Demographic dividend (dependency ratio below 50%) | 1990โ2028 | 1987โ2029 | |
| Aging society (65+ reaches 7%) | 1994 | 2000 6 years later | |
| Aged society (65+ reaches 14%) | 2018 | 2018 | |
| Super-aged society (65+ reaches 20%) | 2025 | 2025 |