Asia · SeoulSouth Korea· by the numbers
Korea, Rep.
South Korea's population is 51,684,564 (2025) — the 29th-largest in the world and the 13th-largest in Asia, shrinking by about 66,501 people a year.
South Korea Facts at a Glance
Six numbers that summarise the country — population trend, rank, density, wealth, prices, share of humanity.
South Korea in World Rankings
Every world ranking we publish, this country’s place in each, and its overall percentile shape.
Is South Korea's Population Declining?
Yes. South Korea's population fell by 66,501 people (-0.13%) between 2024 and 2025. The fertility rate is 0.8 births per woman — below the ~2.1 replacement level. Net migration was positive in the latest year on record.
Population, 1960 to 2025
66 years of estimates from the same source.
South Korea Demographics
Every indicator has its own source and dataset year — shown honestly rather than smoothed into one.
Age & sex structure
17 five-year bands, male and female, 2025.
Largest cities
By population, GeoNames city-proper figures (not metro area).
Where is South Korea Located?
- Capital
- Seoul
- Currency
- Won (KRW)
- Language(s)
- Korean, English
- Region
- East Asia & Pacific
- Continent
- 48 countries in Asia →
- Land area
- 97,600 km²
- Area (GeoNames)
- 98,480 km²
- Borders
- 1 country
North KoreaYou, in South Korea
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Frequently asked
What is the population of South Korea?
South Korea's population is 51,684,564 as of 2025 (World Bank estimate), ranking #29 of 217 countries and territories by population.
How many people live in South Korea?
51,684,564 people, as of the 2025 World Bank estimate — the most recent figure this page tracks.
What is South Korea's population density?
529.6 people per km², based on a land area of 97,600 km².
What is South Korea ranked in population worldwide?
#29 of 217 countries and territories by population — see the full ranking table for every country's position.
What is the life expectancy in South Korea?
83.6 years on average (2024) — 80.8 for men, 86.6 for women.
What is South Korea's GDP?
$1.87T, ranking #13 of 186 economies we track — $36,227 per capita.
Is South Korea's population declining?
Yes. South Korea's population has been shrinking, falling by 66,501 people (-0.13%) between 2024 and 2025.
Cite this page
CC BY 4.0Our compilation on this page — the figures as arranged, ranked and dated here — is published under CC BY 4.0. Reuse it anywhere, including commercially, with a link back. The underlying data belongs to the organizations credited below.
Us, by Numbers. "Us, by Numbers." https://usbynumbers.com
Sources
- World Bank Open Data · data.worldbank.orgCC BY 4.0 · population, GDP, life expectancy, homicide, PM2.5, vitals
- NCD-RisC / The Lancet · ncdrisc.orgCC BY 4.0 · pooled measured-height and life-expectancy studies
- GeoNames · geonames.orgCC BY 4.0 · cities, geographic passport