United States vs Vietnam
Population, economy and geography side by side
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United States has 3.4 times as many people as Vietnam (343 million vs 102 million in 2026). United States is 29.2 times larger by land area. GDP per capita is higher in United States ($90,027 vs $5,066). People live longer on average in United States (78.9 vs 74.7 years).
| United States | Vietnam | |
|---|---|---|
| Population (2026) | 343,382,784 | 102,177,431 |
| Yearly population change | +0.47% | +0.57% |
| Population 2050 (projected) | 373 million | 110 million |
| Land area | 9,147,420 km² | 313,429 km² |
| Density | 38/km² | 326/km² |
| GDP | $30.77 trillion (2025) | $515 billion (2025) |
| GDP per capita | $90,027 (2025) | $5,066 (2025) |
| Life expectancy | 78.9 years | 74.7 years |
| Births per woman | 1.63 | 1.90 |
| Urban population | 80% | 39% |
| Capital | Washington, D.C. | Hanoi |
| Currency | United States dollar (USD) | Vietnamese đồng (VND) |
| Calling code | +1 | +84 |
Share of world population: United States 4.14%, Vietnam 1.23%.
Frequently asked questions
Which has a bigger population, United States or Vietnam?
United States: about 343 million people versus 102 million in Vietnam (2026).
Is United States bigger than Vietnam?
By land area, United States is larger: 9,147,420 km² versus 313,429 km².
Which economy is bigger, United States or Vietnam?
United States, with a GDP of $30.77 trillion versus $515 billion (World Bank, current US$).
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).