As of 2025, the population of Guyana is approximately 0.84 million people (835 986), making it the 164th most populous country in the dataset of 217 countries, with a 0.01% share of the combined total.
Over the past five years the population of Guyana changed by +3.53%, and over the past ten years by +10.17%. By five-year growth, Guyana ranks 129th of 217 countries; in terms of momentum, growth is slowing — from +1.25% to +0.70% per year.
| Year | Population | Diff | Diff % | Share of Universe |
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