As of 2025, the population of Guinea is approximately 15.10 million people (15 099 727), making it the 74th most populous country in the dataset of 217 countries, with a 0.18% share of the combined total.
Over the past five years the population of Guinea changed by +12.93%, and over the past ten years by +28.32%. By five-year growth, Guinea ranks 28th of 217 countries; in terms of momentum, growth is slowing — from +2.59% to +2.46% per year.
| Year | Population | Diff | Diff % | Share of Universe |
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