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Where America is changing fastest

Pasco County, Florida added more residents since 2020 than the entire state of Vermont contains.

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Where America is changing fastestPasco County, Florida added more residents since 2020 than the entire state of Vermont contains. AZ 6.5% LA -0.8% ID 10.4% MN 2.2% ND 2.6% SD 5.5% NY -1.0% AK 0.5% GA 5.5% IN 2.8% MI 0.5% MS -0.2% OH 0.9% TX 8.8% NE 2.9% CO 4.1% KS 1.3% IL -0.8% WI 1.3% CA -0.5% IA 1.5% PA 0.4% MT 5.6% MO 1.9% FL 8.9% KY 2.2% ME 3.8% UT 8.2% OK 4.1% TN 5.8% OR 0.9% WV -1.5% AR 3.4% WA 3.8% NC 7.3% VA 2.9% WY 2.1% AL 3.3% SC 8.8% NM 0.4% NV 5.7% VT 0.3% NH 2.7% MA 1.7% RI 1.6% CT 2.2% NJ 2.8% DE 7.1% MD 1.4% DC 0.6% HI -1.5% 0.0% 0.5% 5.0%+ Source: U.S. Census Bureau, Vintage 2025 Population Estimates state totals usadatamap.com
Pasco County, Florida added more residents since 2020 than the entire state of Vermont contains. Source: U.S. Census Bureau, Vintage 2025 Population Estimates state totals and county estimates, released 2026.

Pasco County, Florida added 119,400 residents between April 2020 and July 2025. That is more people than the entire state of Vermont contains. Idaho grew 10.4% over the same period; West Virginia shrank 1.5%, and California was down 0.5%. The map below shows the official state-level population change since the 2020 base.

The pattern that emerges is sharper than the state choropleth most people have already seen. Growth concentrates in roughly four corridors: the Florida peninsula minus Miami-Dade, the Texas triangle from Austin through Dallas to Houston, the Mountain West fringe (Idaho’s Treasure Valley, Utah’s Wasatch Front, Phoenix’s exurban ring), and the Carolina I-85 corridor. Decline is geographically broader but demographically thinner. It runs through Appalachian coal country, the Mississippi Delta, the Great Plains’ wheat belt, and a surprising number of Rust Belt counties that quietly reversed their brief 2018–2021 stabilization.

The counter-intuitive finding is in the suburbs of declining metros. Cuyahoga County, Ohio (Cleveland) lost 19,300 residents, but neighboring Medina and Geauga counties gained. St. Louis City lost 7,800; St. Charles County across the river gained 24,000. The intra-metro reshuffle is sometimes larger than the state-level net change, which is why the county callouts matter. The red-white-green scale separates losses from flat growth and makes states above 0.5% growth read as the positive side of the map.

A note on what’s missing. The big gainers in absolute terms (Maricopa, Harris, Tarrant, Riverside) dwarf everything else and would visually swallow the map under a linear scale. We use a percent-change choropleth as the primary layer and annotate the top ten absolute gainers with proportional labels.

Methodology

State and county estimates are sourced from the Census Bureau’s Population Estimates Program (PEP) Vintage 2025, released in 2026, with reference dates of April 1, 2020 (estimates base) and July 1, 2025. Percent change is computed against the 2020 estimates base; absolute change is computed in raw residents.

Caveats

  • PEP estimates carry a known undercount issue for the 2020 base in several historically undercounted populations. The Census Bureau’s own reconciliation note documents the residual.
  • The 2025 vintage incorporates updated administrative records (Medicare, IRS, USPS) but does not yet reflect the 2026 ACS revisions.
  • “Population change” includes both natural change (births minus deaths) and net migration. This map does not separate the two; that’s a separate piece in the migration slot.