Population

Demographic data, trends, and characteristics of the U.S. population.

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

| Population Size & Growth |

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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Fastest-Growing States in the U.S. 2026: Population, Migration, and Rankings

| Population Size & Growth |

Florida is the fastest-growing state in 2026 with a 2% year-over-year population increase, followed by Arizona and Texas. Over the 2020–2025 period, Idaho led with 10.4% growth, while the South accounted for nearly three-quarters of U.S. population gains. This article breaks down the latest Census Bureau estimates, rankings, and the migration and economic forces behind the trend.

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U.S. Population by State: 2025 Census Estimates Show Texas and Florida Lead Growth as California Slips

| Population Size & Growth |

The U.S. Census Bureau’s Vintage 2025 estimates show the national population grew by just 0.5% between July 2024 and July 2025, the slowest since the COVID-19 pandemic. California remains the most populous state at 39.36 million, but it lost residents, while Texas and Florida posted the largest numeric gains. The new state-level data highlight a continuing shift toward the South and Mountain West.

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