South Korea, officially the Republic of Korea, has experienced one of the fastest demographic transformations in the world. From a post-war nation with just 19.8 million people in 1950, the country grew to a peak population of 51.8 million in 2020. However, South Korea is now entering a period of population decline, driven by low birth rates and aging demographics. By 2100, the population is projected to fall below 22 million, marking a dramatic shift in the nation’s future.
Historical Population Growth (1950–2024)
South Korea’s population surged during the latter half of the 20th century due to rapid industrialization, urban migration, and improved healthcare. Growth stabilized in the 1990s as fertility rates fell.
Key Milestones in South Korea’s Population
| Year | Population (thousands) |
|---|---|
| 1950 | 19,757 |
| 1970 | 32,542 |
| 1990 | 44,081 |
| 2000 | 46,767 |
| 2010 | 48,769 |
| 2020 | 51,858 |
| 2024 | 51,718 |
By 2024, South Korea’s population had nearly tripled since 1950, but the peak years are already behind.
Future Population Projections for South Korea (2025–2100)
According to projections, South Korea will see a steady population decline throughout the 21st century. With one of the lowest fertility rates in the world, the country faces significant demographic and economic challenges.
Projection Highlights
| Year | Projected Population (thousands) |
|---|---|
| 2030 | 51,189 |
| 2050 | 45,143 |
| 2075 | 31,975 |
| 2100 | 21,849 |
This decline means that by 2100, South Korea could have less than half its 2020 population, fundamentally reshaping its economy, workforce, and social systems.
FAQ
South Korea’s population in 2024 is about 51.7 million.
The peak was around 2020, with 51.8 million people.
The decline is due to ultra-low fertility rates, delayed marriages, and an aging society.
By 2050, the population is projected to be around 45.1 million.
By 2100, South Korea’s population may shrink to about 21.8 million, less than half of its current size.
Source:
United Nations. World Population Prospects 2024.
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