As of 2025, the population of American Samoa is approximately 0.05 million people (46 029), making it the 205th most populous country in the dataset of 217 countries, with a 0.00% share of the combined total.
Over the past five years the population of American Samoa changed by -7.50%, and over the past ten years by -12.95%. By five-year growth, American Samoa ranks 210th of 217 countries; in terms of momentum, the decline is accelerating — from -1.21% to -1.55% per year.
| Year | Population | Diff | Diff % | Share of Universe |
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