Population Pyramids of the World from 1950 to 2100

United Kingdom Population Pyramid 2031

United Kingdom
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2031
Population: 71,587,424

Year

-5 -1   2031  +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

United Kingdom in 2031

United Nations projections (medium variant) put the population of the United Kingdom at 71,587,424 in 2031. Ten years before, in 2021, the projected population is 67,668,792 — 5.8% lower.

With a projected median age of 41.9 years, the United Kingdom would have a youth dependency ratio of 24.6 and an old-age dependency ratio of 33.7 per 100 people of working age. The pyramid is constrictive: cohorts of children are smaller than those of their parents, reflecting low fertility and an ageing population.

Ranks #21 of 201 by population Ranks #52 of 201 by median age Ranks #122 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 United Kingdom
Population
71,587,424
Median age
41.9
0-14 %
15.5%
65+ %
21.3%
Child dependency
24.6
Old-age dependency
33.7
Region
EUROPE
Pyramid shape
Constrictive
Population 2050
75,504,681
Population 2100
74,305,411
What is driving the change
Births per woman
Total fertility rate, 1960–2023
123
1960Replacement level (2.1)2023 · 1.56

The fertility rate of the United Kingdom was 1.56 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 · 81.2

A child born there in 2023 could expect to live 81.2 years on average (83.2 years for girls, 79.4 for boys).

Source: World Bank World Development Indicators, latest available year.

People supported per 100 workers
Dependency ratios, 1950–2100
Children Older adults
15304560
19502100
Migration to and from United Kingdom
Where immigrants come from (2024)

8,730,397 immigrants live in United Kingdom, 12.6% of the population.

India1,044,779
Poland902,193
Romania713,578
Pakistan703,309
Ireland360,446
Where emigrants live (2024)

4,751,880 people born in United Kingdom live in other countries.

Australia1,107,102
United States of America894,789
Canada427,526
Spain294,986
Ireland293,559
Explore
Immigration statistics Origin of migrant stocks map

Source: United Nations International Migrant Stock 2024.

How United Kingdom compares with its neighbours
Country Population Median age Relative size
United Kingdom 71,587,424 41.9
Sweden 10,868,794 42.7
Denmark 6,091,944 42.8
Norway 5,745,652 42.6
Finland 5,582,720 45.5
Frequently asked questions about United Kingdom's population
What will the population of the United Kingdom be in 2031?
UN projections put the United Kingdom's population at 71,587,424 in 2031.
Is the population of the United Kingdom increasing or decreasing?
Yes, growing: up 5.8% from 2021, with a projected population of 75,504,681 in 2050.
What is the median age in the United Kingdom?
The median age in the United Kingdom is 41.9 years — half the population is younger, half older.
How many children and older people live in the United Kingdom?
21.3% of the United Kingdom's population is 65 or older, and 15.5% is under 15.
What shape is the United Kingdom's population pyramid, and what does it mean?
The United Kingdom has a constrictive pyramid: cohorts of children are smaller than those of their parents, reflecting low fertility and an ageing population.

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