United Kingdom Population Pyramid 2027
United Kingdom in 2027
In 2027, the United Kingdom is projected to have a population of 70,293,580 people. That would be 5.9% more than in 2017 (66,354,471).
With a projected median age of 41.4 years, the United Kingdom would have a youth dependency ratio of 26.0 and an old-age dependency ratio of 31.9 per 100 people of working age. This is a constrictive pyramid — its base is narrower than its middle, the signature of sustained low birth rates and population ageing.
Data source: United Nations World Population Prospects, 2024 revision (medium variant) — last updated July 2024.
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.
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.
8,730,397 immigrants live in United Kingdom, 12.6% of the population.
| India | 1,044,779 |
| Poland | 902,193 |
| Romania | 713,578 |
| Pakistan | 703,309 |
| Ireland | 360,446 |
4,751,880 people born in United Kingdom live in other countries.
| Australia | 1,107,102 |
| United States of America | 894,789 |
| Canada | 427,526 |
| Spain | 294,986 |
| Ireland | 293,559 |
Source: United Nations International Migrant Stock 2024.
| Country | Population | Median age | Relative size |
|---|---|---|---|
| United Kingdom | 70,293,581 | 41.4 | |
| Sweden | 10,741,251 | 41.7 | |
| Denmark | 6,041,443 | 42.4 | |
| Norway | 5,673,549 | 41.4 | |
| Finland | 5,616,001 | 44.6 |





