Republic of Korea
19502100
2026
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Total population
51,600,388
Density
522 people/km²
Median age
46.2 years
Growth rate
-0.14%
Total population from 1950 to 2100 (projections beyond 2024)
Male and female population with sex ratio trend
No population by gender data available.
Population distribution by 5-year age groups (Projection)
People per square kilometre
Age where half the population is younger
Annual percentage change in population size
Republic of Korea passed its population peak 6 years ago in 2020, and has since declined by 0.5%. The population is aging rapidly—median age will rise from 45 in 2026 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 2026's level.