As of 2025, the population of Ireland is approximately 5.48 million people (5 484 367), making it the 121st most populous country in the dataset of 217 countries, with a 0.07% share of the combined total.
Over the past five years the population of Ireland changed by +8.82%, and over the past ten years by +16.64%. By five-year growth, Ireland ranks 65th of 217 countries; in terms of momentum, growth is accelerating — from +1.40% to +1.71% per year.
| Year | Population | Diff | Diff % | Share of Universe |
|---|