Population forecast · World Bank data
South Korea population forecast
Population, total
Latest · 2025
51.68M
The population of South Korea is forecast at 51.73M in 12 months (2026), with an 80% range of 50.74M to 51.73M. The latest World Bank figure is 51.68M for 2025.
In 24 months (2027) and 36 months (2028) the model projects 51.64M and 51.78M (+0.2% versus 2025).
Display-only line. World Bank data is annual: the forecasts are the yearly points marked on the chart. The monthly line between them is a straight-line interpolation for display, not a monthly forecast.
- 6 monthsinterpolated · display only
- 51.71M■ 0.0%80%: 51.21M – 51.71M
- 12 months2026
- 51.73M▲ +0.1%80%: 50.74M – 51.73M
- 24 months2027
- 51.64M▼ −0.1%80%: 50.49M – 51.88M
- 36 months2028
- 51.78M▲ +0.2%80%: 50.69M – 51.85M
Backtest · last 5 years
How accurate has this been?
| Horizon | Tests | Avg. error | Naive error | In 80% range |
|---|---|---|---|---|
| 12 months | 5 | 0.23M | 0.06M | 100% |
| 24 months | 4 | 0.24M | 0.08M | 100% |
| 36 months | 3 | 0.26M | 0.05M | 100% |
We re-ran the model as if standing at past dates, using only the data available then. Avg. error is the mean absolute gap between the median and what happened; naive assumes no change from the last value. A well-calibrated 80% range contains about 80% of outcomes. Annual series have few test points, so treat these as rough. Methodology
Source data
Recent values
| Year | Value | Change |
|---|---|---|
| 2025 | 51.68M | −0.13% |
| 2024 | 51.75M | +0.07% |
| 2023 | 51.71M | +0.08% |
| 2022 | 51.67M | −0.19% |
| 2021 | 51.77M | −0.13% |
| 2020 | 51.84M | +0.14% |
| 2019 | 51.76M | +0.35% |
| 2018 | 51.59M | +0.43% |
| 2017 | 51.36M | +0.28% |
| 2016 | 51.22M | +0.40% |
About this forecast
- Source
- World Bank, World Development Indicators · series SP.POP.TOTL
- Data through
- 2025 · 66 observations
- Forecast updated
- Sep 28, 2026
- Model
- TimesFM 2.5 (Google Research, Apache-2.0), zero-shot
More forecasts for South Korea
South Korea overviewOther population forecasts
All 40Statistical model, not financial advice. This forecast is generated automatically from public data; the 80% range means outcomes are expected outside it about one time in five. Don't make financial decisions based only on it.
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