Ireland Population Pyramid 2025
Ireland in 2025
In 2025, Ireland had a total population of 5,308,039 people. A decade earlier, in 2015, the population was 4,702,487; it has grown by 12.9% since.
With a median age of 40.0 years, Ireland had a youth dependency ratio of 27.5 and an old-age dependency ratio of 24.7 per 100 people of working age. The near-vertical sides of the pyramid indicate a stationary age structure, with births roughly balancing the passage of cohorts into older age.
Data source: United Nations World Population Prospects, 2024 revision (medium variant) — last updated July 2024.
The fertility rate of Ireland was 1.50 births per woman in 2023, under the 2.1 needed to replace each generation.
Source: World Bank World Development Indicators, latest available year.
Life expectancy at birth was 82.9 years in 2023: 84.5 for women and 81.3 for men.
Source: World Bank World Development Indicators, latest available year.
1,034,444 immigrants live in Ireland, 19.7% of the population.
| United Kingdom | 293,559 |
| Ukraine | 125,016 |
| Poland | 102,708 |
| India | 70,228 |
| Brazil | 48,605 |
712,129 people born in Ireland live in other countries.
| United Kingdom | 360,446 |
| United States of America | 125,844 |
| Australia | 90,203 |
| Poland | 34,300 |
| Canada | 28,912 |
Source: United Nations International Migrant Stock 2024.
| Country | Population | Median age | Relative size |
|---|---|---|---|
| Ireland | 5,308,039 | 40.0 | |
| Norway | 5,623,071 | 40.9 | |
| Finland | 5,623,330 | 44.2 | |
| Denmark | 6,002,507 | 42.3 | |
| Lithuania | 2,830,145 | 43.4 |





