Iran vs United Kingdom
Iran has 1.3× the population of United Kingdom: 92,417,681 vs 69,487,000, a gap of 22.9 million. Iran is growing faster (+0.92% vs +0.30% a year), adding about 853,875 people a year against +206,306. At these source-year rates the modelled relative population gap is widening. United Kingdom is the older society: 19.7% aged 65+ against 8.6% in Iran, while Iran has more children (22.0% under 15 vs 17.0%). United Kingdom is 5.1× as densely populated (283.2 vs 55.8 people per km²). People in United Kingdom live 3.5 years longer on average (81.4 vs 77.9). GDP per capita is 14.7× higher in United Kingdom ($57,602 vs $3,924).
Country/territory population bases: World Bank 2025 (Iran) and 2025 (United Kingdom); growth years 2025 / 2025. Annual source values, not live counts; years may differ. Growth is national, not local.
Iran vs United Kingdom — side by side
 Iran |  United Kingdom | |
|---|---|---|
| Population | 92,417,6812025 | 69,487,0002025 |
| Growth rate / yr | +0.92%2025 | +0.30%2025 |
| Births per 1,000 | 12.62024 | 9.92024 |
| Deaths per 1,000 | 4.82024 | 9.72024 |
| Children per woman | 1.682024 | 1.552024 |
| Life expectancy | 77.9 yrs2024 | 81.4 yrs2024 |
| Aged 0–14 | 22.0%2025 | 17.0%2025 |
| Aged 65+ | 8.6%2025 | 19.7%2025 |
| Density | 55.8 /km²2023 | 283.2 /km²2023 |
| Area | 1,745,150 km²2023 | 243,610 km²2023 |
| Urban population | 77.4%2025 | 83.3%2025 |
| Net migration / yr | +116,7862025 | +389,9112025 |
| GDP per capita | $3,9242025 | $57,6022025 |
| Country population rank (available records) | #17 | #22 |
| Base / world population (World Bank 2025) | 1.12% | 0.85% |
Highlighted cell = the higher value (not "better"). Small print under each value is its own data year. Source: World Bank; country/territory population bases may have different years. These are not live counts.
Population since 1960
World Bank population history (not the separate UN WPP timeline). Iran: 4.3× from 1960 to 2025; United Kingdom: 1.3× from 1960 to 2025. Left: absolute population. Right: each series indexed to its own first available year = 100; baseline years may differ.
More comparisons
Regions: Middle East, North Africa, Afghanistan & Pakistan · Europe & Central Asia · rankings
Iran: Iran vs India, Iran vs China, Iran vs United States, Iran vs Indonesia, Iran vs Pakistan, Iran vs Nigeria, Iran vs Brazil, Iran vs Bangladesh.
United Kingdom: United Kingdom vs India, United Kingdom vs China, United Kingdom vs United States, United Kingdom vs Indonesia, United Kingdom vs Pakistan, United Kingdom vs Nigeria, United Kingdom vs Brazil, United Kingdom vs Bangladesh.
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This page is a structured reference entry. Its sources, geographic definition and reference dates determine what the figures mean; it is not independent reporting about the causes of change. Read the accompanying explanation before comparing different places or vintages.