As of 2025, the population of Chad is approximately 21.00 million people (21 003 705), making it the 63rd most populous country in the dataset of 217 countries, with a 0.26% share of the combined total.
Over the past five years the population of Chad changed by +21.94%, and over the past ten years by +43.39%. By five-year growth, Chad ranks 3rd of 217 countries; in terms of momentum, growth is accelerating — from +3.29% to +4.05% per year.
| Year | Population | Diff | Diff % | Share of Universe |
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