Ireland vs Slovakia: Population by age
Ireland
5.44 million
in 2025
Slovakia
5.42 million
in 2025
Ireland rank
48th
Slovakia rank
49th
Population by age over time
- Ireland
- Slovakia
How they compare
Ireland currently reports 5.44 million against 5.42 million in Slovakia, a difference of 20,830.
The two have swapped places 1 time across 36 shared years of data; in 1990 it was Slovakia ahead.
Ireland ranks 48th and Slovakia ranks 49th of 74 countries.
Slovakia has averaged higher in every one of the 4 decades both report.
Head to head by decade
| Decade | Ireland | Slovakia | Difference | Ahead |
|---|---|---|---|---|
| 1990s | 3.60 million | 5.34 million | 1.74 million | Slovakia |
| 2000s | 4.11 million | 5.38 million | 1.26 million | Slovakia |
| 2010s | 4.70 million | 5.42 million | 723,410 | Slovakia |
| 2020s | 5.22 million | 5.44 million | 221,360 | Slovakia |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher population by age, Ireland or Slovakia?
- Ireland, at 5.44 million against 5.42 million in Slovakia as of 2025.
- What is the difference in population by age between Ireland and Slovakia?
- 20,830, with Ireland ahead.
- How many years of comparable data are there for Ireland and Slovakia?
- 36 years are reported by both, from 1990 to 2025.
- How do Ireland and Slovakia rank globally for population by age?
- Ireland ranks 48th and Slovakia ranks 49th of 74 countries.
- Where does this data come from?
- UNICEF, published as Population by age. Statizoid refreshes it automatically from the source and publishes the full history for both places.