U.S. Population by Year: 1790–2025 Census Estimates and Historical Trends

The U.S. resident population reached an estimated 342.4 million in December 2025, up from 341.0 million in 2024 and 76.1 million in 1900. Census Bureau annual estimates and historical series show steady long-term growth, with the most recent year-over-year increase reflecting continued natural change and net international migration. This article summarizes official population totals by year, key milestones, and the methods behind the estimates.

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