Population forecast · World Bank data

Poland population forecast

Population, total

Latest · 2025

36.44M

The population of Poland is forecast at 36.28M in 12 months (2026), with an 80% range of 35.96M to 36.33M. The latest World Bank figure is 36.44M for 2025.

In 24 months (2027) and 36 months (2028) the model projects 36.14M and 36.00M (−1.2% versus 2025).

35.5M36.0M36.5M37.0M37.5M38.0M201520202025HistoryForecast
36M37M38M2020HistoryForecast

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
36.36M▼ −0.2%80%: 36.20M – 36.38M
12 months2026
36.28M▼ −0.4%80%: 35.96M – 36.33M
24 months2027
36.14M▼ −0.8%80%: 35.67M – 36.30M
36 months2028
36.00M▼ −1.2%80%: 35.36M – 36.27M

Backtest · last 5 years

How accurate has this been?

HorizonTestsAvg. errorNaive errorIn 80% range
12 months50.10M0.22M80%
24 months40.17M0.38M75%
36 months30.34M0.55M67%

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

YearValueChange
202536.44M−0.34%
202436.56M−0.35%
202336.69M−0.36%
202236.82M−0.43%
202136.98M−1.42%
202037.52M−1.18%
201937.97M−0.02%
201837.97M−0.00%
201737.97M+0.01%
201637.97M−0.04%

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

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Statistical 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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