China vs Republic of Korea: population pyramids in 2100
ChinaRepublic of Korea
Each bar is the share of the total population at that single year of age (men left, women right), so countries of different sizes can be compared.
China and Republic of Korea compared
In 2100, China has a population of 634.5 million and the Republic of Korea 21.5 million; China is about 29 times the size of the Republic of Korea.
The share aged 65 and over is 45.5% in China and 44.1% in the Republic of Korea, 1.5 points higher in China. The median age is 61.5 years in China and 59.9 years in the Republic of Korea.
The total fertility rate is 1.35 in China and 1.30 in the Republic of Korea, both below the replacement level of about 2.1. Life expectancy at birth is 89.8 years in China and 93.1 years in the Republic of Korea.
GDP per person is $14K in China (2025) and $36K in the Republic of Korea (2025).
Figures from 2024 are UN medium-variant projections.
Key figures (2100)
| China | Republic of Korea | |
|---|---|---|
| Population | 634.5 million | 21.5 million |
| Aged 0–14 | 7.9% | 8.8% |
| Aged 15–64 | 46.6% | 47.1% |
| Aged 65+ | 45.5% | 44.1% |
| Median age | 61.5 yrs | 59.9 yrs |
| Old-age dependency | 97.7 | 93.5 |
| Total fertility rate | 1.35 | 1.30 |
| Life expectancy | 89.8 yrs | 93.1 yrs |
| Population growth | -1.68% | -1.45% |
| Net migration (per year) | -77,792 | -554 |
| GDP | $19.5T (2025) | $1.87T (2025) |
| GDP per person | $14K (2025) | $36K (2025) |
| Unemployment | 4.6% (2025) | 2.7% (2025) |
Economic figures are the latest year published for each country.