Population on 1 January by age group, sex and country of birth in Ireland

Ireland: Population on 1 January by age group, sex and country of birth was 5.44 million Number in 2025. ▲ Rising

Latest (2025)
5.44 million Number
Change on year
up 1.7%
World rank
25th
of 42 countries
All-time high
5.44 million Number
in 2025
All-time low
3.69 million Number
in 1998
Years of data
23
1998–2025

Population on 1 January by age group, sex and country of birth in Ireland, 1998–2025

02.0M4.0M6.0M1998201120251998: 3.7M Number1999: 3.7M Number2000: 3.8M Number2001: 3.8M Number2007: 4.3M Number2008: 4.5M Number2009: 4.5M Number2010: 4.5M Number2011: 4.6M Number2012: 4.6M Number2013: 4.6M Number2014: 4.6M Number2015: 4.7M Number2016: 4.7M Number2017: 4.8M Number2018: 4.9M Number2019: 4.9M Number2020: 5.0M Number2021: 5.1M Number2022: 5.2M Number2023: 5.3M Number2024: 5.4M Number2025: 5.4M Number

Source: Eurostat. Measured in Number.

Analysis

The most recent figure for population on 1 january by age group, sex and country of birth in Ireland is 5.44 million Number, measured in 2025. That is the highest value across all 23 years on record.

The figure is up 1.7% on the previous year and up 16.3% over ten years.

Over the whole period, population on 1 january by age group, sex and country of birth in Ireland peaked at 5.44 million Number in 2025 and was at its lowest, 3.69 million Number, in 1998.

Ireland ranks 25th of 42 countries on this measure, in the middle of the range.

The long-run direction has been consistently rising across the 23 years of available data.

Population on 1 January by age group, sex and country of birth in Ireland, year by year

Annual values for Population on 1 January by age group, sex and country of birth in Ireland, 1998 to 2025.
Year Number Change
1998 3.69 million Number
1999 3.73 million Number +1.0%
2000 3.78 million Number +1.2%
2001 3.83 million Number +1.5%
2007 4.34 million Number +13.2%
2008 4.46 million Number +2.7%
2009 4.52 million Number +1.4%
2010 4.55 million Number +0.6%
2011 4.57 million Number +0.5%
2012 4.59 million Number +0.4%
2013 4.61 million Number +0.4%
2014 4.64 million Number +0.6%
2015 4.68 million Number +0.9%
2016 4.73 million Number +1.0%
2017 4.80 million Number +1.5%
2018 4.86 million Number +1.2%
2019 4.94 million Number +1.7%
2020 5.01 million Number +1.5%
2021 5.07 million Number +1.1%
2022 5.15 million Number +1.7%
2023 5.27 million Number +2.3%
2024 5.35 million Number +1.5%
2025 5.44 million Number +1.7%

Ireland compared with similar countries

  • Ireland's 5.44 million Number is below the median for Europe & Central Asia, which is 9.05 million Number, 60% of the median. (31 countries reporting)
  • Ireland's 5.44 million Number is below the median for high income countries, which is 7.74 million Number, 70% of the median. (32 countries reporting)

Averages by decade

DecadeAverage LowestHighest Years
1990s 3.71 million Number 3.69 million Number 3.73 million Number 2
2000s 4.19 million Number 3.78 million Number 4.52 million Number 5
2010s 4.70 million Number 4.55 million Number 4.94 million Number 10
2020s 5.22 million Number 5.01 million Number 5.44 million Number 6

Countries ranked near Ireland

  1. 22 Denmark 5.99 million Number compare
  2. 23 Finland 5.64 million Number compare
  3. 24 Norway 5.59 million Number compare
  4. 26 Slovakia 5.42 million Number compare
  5. 26 Slovakia 5.42 million Number compare
  6. 28 Croatia 3.87 million Number compare
  7. 28 Croatia 3.87 million Number compare

See the full ranking of 43 places →

More population data for Ireland

All data for Ireland →

Frequently asked questions

What is population on 1 january by age group, sex and country of birth in Ireland?
Population on 1 january by age group, sex and country of birth in Ireland was 5.44 million Number in 2025, according to Eurostat.
What is the highest population on 1 january by age group, sex and country of birth recorded in Ireland?
The highest recorded value was 5.44 million Number in 2025.
What is the lowest population on 1 january by age group, sex and country of birth recorded in Ireland?
The lowest recorded value was 3.69 million Number in 1998.
How does Ireland rank for population on 1 january by age group, sex and country of birth?
Ireland ranks 25th out of 42 countries with data for 2025.
Is population on 1 january by age group, sex and country of birth rising or falling in Ireland?
Over the last ten years it is up 16.3%. The long-run trend across the full record is rising.
Where does this Ireland data come from?
The figures come from Eurostat, published as part of Population on 1 January by age group, sex and country of birth. Statizoid updates them automatically from the source API.

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Population on 1 January by age group, sex and country of birth in Ireland. Statizoid, drawing on Eurostat. Retrieved 14 September 2026, from https://population.statizoid.com/stat/population-on-1-january-by-age-group-sex-and-country-of-birth/ireland/

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About this data

Indicator
Population on 1 January by age group, sex and country of birth
Unit
Number
Source
Eurostat
Licence
CC BY 4.0 (Eurostat)
Coverage
43 places, 1,028 data points, 1998–2025
Last refreshed