Population forecast · World Bank data
Indonesia population forecast
Population, total
Latest · 2025
285.7M
The population of Indonesia is forecast at 289.1M in 12 months (2026), with an 80% range of 287.1M to 291.5M. The latest World Bank figure is 285.7M for 2025.
In 24 months (2027) and 36 months (2028) the model projects 290.5M and 293.4M (+2.7% 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
- 287.4M▲ +0.6%80%: 286.4M – 288.6M
- 12 months2026
- 289.1M▲ +1.2%80%: 287.1M – 291.5M
- 24 months2027
- 290.5M▲ +1.7%80%: 287.6M – 295.0M
- 36 months2028
- 293.4M▲ +2.7%80%: 288.8M – 299.2M
Backtest · last 5 years
How accurate has this been?
| Horizon | Tests | Avg. error | Naive error | In 80% range |
|---|---|---|---|---|
| 12 months | 5 | 1.43M | 2.18M | 0% |
| 24 months | 4 | 0.65M | 4.41M | 100% |
| 36 months | 3 | 1.41M | 6.67M | 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 | 285.7M | +0.79% |
| 2024 | 283.5M | +0.82% |
| 2023 | 281.2M | +0.85% |
| 2022 | 278.8M | +0.75% |
| 2021 | 276.8M | +0.71% |
| 2020 | 274.8M | +0.85% |
| 2019 | 272.5M | +0.94% |
| 2018 | 270.0M | +0.97% |
| 2017 | 267.3M | +1.03% |
| 2016 | 264.6M | +1.08% |
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 Indonesia
Indonesia 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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