U.S. population blog and data analysis
Original analysis of Census population estimates: growth rates, geographic comparisons, migration accounting, density and the source definitions behind a figure. Each article includes exact tables, research links and downloadable results.
Why the Fastest-Growing City Depends on Your Population Filter
Niederwald leads all eligible cities by growth rate, while Celina leads above 10,000 starting residents. Explore five population thresholds.
Read the population analysisThe 2020 Census Count and Estimates Base Differ by 66,832
The national 2020 census count is 331,449,281, while Vintage 2025 uses a base of 331,516,113. Understand the difference without calling it population growth.
Read the population analysisAustin City and County Population Growth Are Different Stories
Austin city had 1,002,632 residents in 2025. Compare its whole-city trend with Travis and Williamson counties without mixing overlapping geographies.
Read the population analysisFastest-Growing Counties: Why Counts and Rates Rank Differently
Harris County led numeric county growth; Jasper County led percentage growth among counties starting above 5,000 residents. Compare the two rankings.
Read the population analysisHow States Can Grow When Deaths Exceed Births
17 states had natural population decrease in 2024–2025, yet 14 of them grew overall. Examine births, deaths and net migration in Census data.
Read the population analysisWhy New Jersey Leads State Population Density Rankings
New Jersey has 1,298.2 residents per square mile. Examine the land denominator, state contrasts and why averaging densities is misleading.
Read the population analysisTexas vs. Florida Population Growth: Rates, Counts and Migration
Texas added 391,243 residents in 2024–2025; Florida added 196,680. Compare five-year growth and source-published migration components.
Read the population analysisU.S. Population Growth Slowed in 2025: What the Data Shows
U.S. population grew by 1,781,060 in 2025. Compare the revised annual series, the previous year and published births, deaths and migration components.
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How these population analyses are researched
Articles use the retained Census PEP Vintage 2025 snapshot, with matching annual observations dated July 1 of 2020–2025. Every calculation can be reproduced from the named file, official code and source variable. The historical census count article keeps decennial counts and revised estimates bases distinct.
The data tables and CSV exports identify the research snapshot. Interactive charts switch between raw population and an indexed series, while missing data remains unavailable. Source notes distinguish computed comparisons from source-published observations. We describe statistical contributions directly without inferring why individuals moved or attributing a population change to a policy.
Continue your population research
Use population rankings for full sorted tables, place profiles for exact dated observations, or research tools for your own comparisons. Nationwide and state-specific files are available from population data downloads.