As of 2025, the population of Eswatini is approximately 1.26 million people (1 256 174), making it the 158th 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 Eswatini changed by +5.32%, and over the past ten years by +9.92%. By five-year growth, Eswatini ranks 105th of 217 countries; in terms of momentum, growth is accelerating — from +0.86% to +1.04% per year.
| Year | Population | Diff | Diff % | Share of Universe |
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