As of 2025, the population of Iran, Islamic Rep. is approximately 92.42 million people (92 417 681), making it the 17th most populous country in the dataset of 217 countries, with a 1.13% share of the combined total.
Over the past five years the population of Iran, Islamic Rep. changed by +5.35%, and over the past ten years by +11.86%. By five-year growth, Iran, Islamic Rep. ranks 104th of 217 countries; in terms of momentum, growth is slowing — from +1.21% to +1.05% per year.
| Year | Population | Diff | Diff % | Share of Universe |
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