United Kingdom Population Pyramid 2039
United Kingdom in 2039
United Nations projections (medium variant) put the population of the United Kingdom at 73,564,958 in 2039. Ten years before, in 2029, the projected population is 70,971,337 — 3.7% lower.
Half of the population would be younger than 43.0 years, with 14.8% children under 15 and 23.3% aged 65 or older. The narrow base of the pyramid marks a constrictive age structure: fertility below replacement level and a rising share of older people.
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 | 73,564,958 | 43.0 | |
| Sweden | 11,054,789 | 44.5 | |
| Denmark | 6,133,191 | 43.9 | |
| Norway | 5,845,091 | 44.8 | |
| Ireland | 5,793,365 | 42.0 |





