Denmark vs Ireland: Historical population data

Denmark
6.00 million Persons
in 2025
Ireland
5.46 million Persons
in 2025
Denmark rank
33rd
Ireland rank
36th

Historical population data over time

  • Denmark
  • Ireland
02.0M4.0M6.0M195019872025

How they compare

Denmark currently reports 6.00 million Persons against 5.46 million Persons in Ireland, a difference of 543,810 Persons.

That makes Denmark's figure about 1.1 times Ireland's.

Across all 76 years both countries report, Denmark has been ahead every year.

Denmark ranks 33rd and Ireland ranks 36th of 43 countries.

Denmark has averaged higher in every one of the 8 decades both report.

Head to head by decade

Decade Denmark Ireland Difference Ahead
1950s 4.41 million Persons 2.92 million Persons 1.50 million Persons Denmark
1960s 4.74 million Persons 2.87 million Persons 1.87 million Persons Denmark
1970s 5.04 million Persons 3.15 million Persons 1.89 million Persons Denmark
1980s 5.12 million Persons 3.50 million Persons 1.62 million Persons Denmark
1990s 5.23 million Persons 3.61 million Persons 1.62 million Persons Denmark
2000s 5.42 million Persons 4.13 million Persons 1.28 million Persons Denmark
2010s 5.67 million Persons 4.71 million Persons 964,906 Persons Denmark
2020s 5.92 million Persons 5.23 million Persons 682,673 Persons Denmark

Averages of every year both report within each decade.

Frequently asked questions

Which has higher historical population data, Denmark or Ireland?
Denmark, at 6.00 million Persons against 5.46 million Persons in Ireland as of 2025.
What is the difference in historical population data between Denmark and Ireland?
543,810 Persons, with Denmark ahead.
How many years of comparable data are there for Denmark and Ireland?
76 years are reported by both, from 1950 to 2025.
How do Denmark and Ireland rank globally for historical population data?
Denmark ranks 33rd and Ireland ranks 36th of 43 countries.
Where does this data come from?
Organisation for Economic Co-operation and Development, published as Historical population data. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Denmark vs Ireland: Historical population data. Statizoid, drawing on Organisation for Economic Co-operation and Development. Retrieved 20 August 2026, from https://population.statizoid.com/compare/historical-population-data/denmark/ireland/

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About this data

Indicator
Historical population data
Unit
Persons
Source
Organisation for Economic Co-operation and Development
Licence
OECD Terms and Conditions (attribution required)
Coverage
56 places, 4,256 data points, 1950–2025
Last refreshed

This dataset presents annual population data from 1961 by sex and five year age groups as well as the share of children, youth, the elderly, old-age and total dependency ratios. The data is available for all member countries as well as for the EU27 and G20 countries, Argentina, Brazil, China, India, Indonesia, Russia, Saudi Arabia, Singapore, South Africa and the World total. The data refer to mid-year estimates of the population. See country details in Historical population metadata.