United Kingdom vs United States
Population, economy and geography side by side
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United States has 4.9 times as many people as United Kingdom (343 million vs 69.8 million in 2026). United States is 37.8 times larger by land area. GDP per capita is higher in United States ($90,027 vs $57,602). People live longer on average in United Kingdom (81.4 vs 78.9 years).
| United Kingdom | United States | |
|---|---|---|
| Population (2026) | 69,833,560 | 343,382,784 |
| Yearly population change | +0.50% | +0.47% |
| Population 2050 (projected) | 74.9 million | 373 million |
| Land area | 241,930 km² | 9,147,420 km² |
| Density | 289/km² | 38/km² |
| GDP | $4.00 trillion (2025) | $30.77 trillion (2025) |
| GDP per capita | $57,602 (2025) | $90,027 (2025) |
| Life expectancy | 81.4 years | 78.9 years |
| Births per woman | 1.55 | 1.63 |
| Urban population | 83% | 80% |
| Capital | London | Washington, D.C. |
| Currency | pound sterling (GBP) | United States dollar (USD) |
| Calling code | +44 | +1 |
Share of world population: United Kingdom 0.84%, United States 4.14%.
Frequently asked questions
Which has a bigger population, United Kingdom or United States?
United States: about 343 million people versus 69.8 million in United Kingdom (2026).
Is United Kingdom bigger than United States?
By land area, United States is larger: 9,147,420 km² versus 241,930 km².
Which economy is bigger, United Kingdom or United States?
United States, with a GDP of $30.77 trillion versus $4.00 trillion (World Bank, current US$).
Sources: World Bank Open Data — World Development Indicators and Population Estimates and Projections (CC BY 4.0); Wikidata (CC0). Retrieved 2026-10-22. GDP in current US dollars (World Bank, latest available year).