As of 2025, the population of Yemen, Rep. is approximately 41.77 million people (41 773 878), making it the 37th most populous country in the dataset of 217 countries, with a 0.51% share of the combined total.
Over the past five years the population of Yemen, Rep. changed by +15.61%, and over the past ten years by +34.07%. By five-year growth, Yemen, Rep. ranks 14th of 217 countries; in terms of momentum, growth is slowing — from +3.01% to +2.94% per year.
| Year | Population | Diff | Diff % | Share of Universe |
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