Population Pyramids of the World from 1950 to 2100

Ireland Population Pyramid 1975

Ireland
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1975
Population: 3,180,118

Year

-5 -1   1975  +1 +5

Country

A B C D E F G H I J K L M N O P Q R S T U V W Y Z
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Summary

Ireland in 1975

As of 1975, Ireland counted 3,180,118 inhabitants. Over the previous ten years the population grew by 10.7%, up from 2,873,153 in 1965.

The median age was 26.5 years, and for every 100 people of working age (15–64) there were 53.5 children under 15 and 18.4 people aged 65 or over. The broad-based, expansive shape of the pyramid points to high fertility and strong population growth.

Ranks #112 of 201 by population Ranks #42 of 201 by median age Ranks #160 of 201 by growth

Share of the population by age group, 1950–2100

Data source: United Nations World Population Prospects, 2024 revision (medium variant) — last updated July 2024.

Key indicators for Ireland
Population
3,180,118
Median age
26.5
0-14 %
31.1%
65+ %
10.7%
Child dependency
53.5
Old-age dependency
18.4
Region
EUROPE
Pyramid shape
Expansive
Population 2050
5,970,042
Population 2100
5,286,120
What is driving the change
Births per woman
Total fertility rate, 1960–2023
12345
1960Replacement level (2.1)2023 · 1.5

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
Years, 1960–2023
Total Women Men
60708090
19602023 · 82.9

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.

People supported per 100 workers
Dependency ratios, 1950–2100
Children Older adults
18355270
19502100
Migration to and from Ireland
Where immigrants come from (2024)

1,034,444 immigrants live in Ireland, 19.7% of the population.

United Kingdom293,559
Ukraine125,016
Poland102,708
India70,228
Brazil48,605
Where emigrants live (2024)

712,129 people born in Ireland live in other countries.

United Kingdom360,446
United States of America125,844
Australia90,203
Poland34,300
Canada28,912
Explore
Immigration statistics Origin of migrant stocks map

Source: United Nations International Migrant Stock 2024.

How Ireland compares with its neighbours
Country Population Median age Relative size
Ireland 3,180,119 26.5
Lithuania 3,295,734 31.4
Latvia 2,455,771 34.9
Norway 4,007,366 32.5
Finland 4,711,168 30.7
Frequently asked questions about Ireland's population
What was the population of Ireland in 1975?
In 1975, Ireland's population was 3,180,118.
Is Ireland's population growing or shrinking?
Yes, growing: up 10.7% from 1965, with a projected population of 5,970,042 in 2050.
How old is the population of Ireland?
Ireland's median age is 26.5 years.
What share of Ireland's population is over 65 or under 15?
In Ireland, 31.1% of people are under 15 and 10.7% are 65 or older.
What shape is Ireland's population pyramid, and what does it mean?
Ireland has an expansive pyramid: a wide base of young cohorts reflecting high fertility and continued population growth.

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