Tanzania vs United Kingdom
Tanzania has about the same population as United Kingdom: 70,545,865 vs 69,487,000, a gap of 1.1 million. Tanzania is growing faster (+2.86% vs +0.30% a year), adding about 2,014,190 people a year against +206,306. United Kingdom is the older society: 19.7% aged 65+ against 3.0% in Tanzania, while Tanzania has more children (42.3% under 15 vs 17.0%). United Kingdom is 3.8× as densely populated (283.2 vs 75.2 people per km²). People in United Kingdom live 14.2 years longer on average (81.4 vs 67.2). GDP per capita is 43.7× higher in United Kingdom ($57,602 vs $1,319).
Country/territory population bases: World Bank 2025 (Tanzania) and 2025 (United Kingdom); growth years 2025 / 2025. Annual source values, not live counts; years may differ. Growth is national, not local.
Tanzania vs United Kingdom — side by side
 Tanzania |  United Kingdom | |
|---|---|---|
| Population | 70,545,8652025 | 69,487,0002025 |
| Growth rate / yr | +2.86%2025 | +0.30%2025 |
| Births per 1,000 | 34.82024 | 9.92024 |
| Deaths per 1,000 | 5.72024 | 9.72024 |
| Children per woman | 4.542024 | 1.552024 |
| Life expectancy | 67.2 yrs2024 | 81.4 yrs2024 |
| Aged 0–14 | 42.3%2025 | 17.0%2025 |
| Aged 65+ | 3.0%2025 | 19.7%2025 |
| Density | 75.2 /km²2023 | 283.2 /km²2023 |
| Area | 947,300 km²2023 | 243,610 km²2023 |
| Urban population | 36.9%2025 | 83.3%2025 |
| Net migration / yr | -12,7302025 | +389,9112025 |
| GDP per capita | $1,3192025 | $57,6022025 |
| Country population rank (available records) | #21 | #22 |
| Base / world population (World Bank 2025) | 0.86% | 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). Tanzania: 7.1× 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: Sub-Saharan Africa · Europe & Central Asia · rankings
Tanzania: Tanzania vs India, Tanzania vs China, Tanzania vs United States, Tanzania vs Indonesia, Tanzania vs Pakistan, Tanzania vs Nigeria, Tanzania vs Brazil, Tanzania 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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