Population forecast · World Bank data
Ireland population forecast
Population, total
Latest · 2025
5.48M
The population of Ireland is forecast at 5.57M in 12 months (2026), with an 80% range of 5.47M to 5.76M. The latest World Bank figure is 5.48M for 2025.
In 24 months (2027) and 36 months (2028) the model projects 5.63M and 5.71M (+4.0% 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 months2025
- 5.53M▲ +0.8%80%: 5.48M – 5.62M
- 12 months2026
- 5.57M▲ +1.6%80%: 5.47M – 5.76M
- 24 months2027
- 5.63M▲ +2.7%80%: 5.48M – 5.91M
- 36 months2028
- 5.71M▲ +4.0%80%: 5.53M – 6.02M
Backtest · last 5 years
How accurate has this been?
| Horizon | Tests | Avg. error | Naive error | In 80% range |
|---|---|---|---|---|
| 12 months | 5 | 0.01M | 0.09M | 100% |
| 24 months | 4 | 0.03M | 0.18M | 100% |
| 36 months | 3 | 0.07M | 0.28M | 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 | 5.48M | +1.64% |
| 2024 | 5.40M | +1.59% |
| 2023 | 5.31M | +1.89% |
| 2022 | 5.21M | +2.00% |
| 2021 | 5.11M | +1.41% |
| 2020 | 5.04M | +1.27% |
| 2019 | 4.98M | +1.60% |
| 2018 | 4.90M | +1.46% |
| 2017 | 4.83M | +1.36% |
| 2016 | 4.76M | +1.29% |
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 Ireland
Ireland 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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