Republic of Korea
19502100
2025
Total population
51.7M
Density
522 people/km²
Median age
45.6 years
Growth rate
-0.12%
Total population from 1950 to 2100 (projections beyond 2024)
Male and female population with sex ratio trend
No population by gender data available.
People per square kilometre
Age where half the population is younger
Annual percentage change in population size
Republic of Korea passed its population peak 5 years ago in 2020, and has since declined by 0.4%. The population is aging rapidly—median age will rise from 45 to 57 by 2050. Population density is high at 522 people per km². Looking ahead, UN projections show the population falling to 21.8M by 2100—less than half of today's level.