United Kingdom vs United States: Population
Difference and history — not a contest scoreboard.
🇬🇧 United Kingdom
68.5M
Rank #7
🇺🇸 United States
341.0M
Rank #3
Difference (A − B)
-272.5M
% difference vs B
-79.9%
Historical chart
Key context
- United Kingdom period change: -0.5% · United States: -0.1%
- Latest observation: 2025 / 2025 · status preliminary / preliminary
- Multi-metric comparison
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