United Kingdom Population Pyramid 1975
United Kingdom in 1975
In 1975, the United Kingdom had a total population of 56,220,142 people. Over the previous ten years the population grew by 3.4%, up from 54,359,020 in 1965.
Half of the population was younger than 34.0 years; 23.3% were children under 15 and 14.1% were 65 or older. The near-vertical sides of the pyramid indicate a stationary age structure, with births roughly balancing the passage of cohorts into older age.
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 | 56,220,143 | 34.0 | |
| Sweden | 8,192,641 | 35.3 | |
| Denmark | 5,060,401 | 33.0 | |
| Finland | 4,711,168 | 30.7 | |
| Norway | 4,007,366 | 32.5 |





