What are the fastest-growing counties in the United States?
Kaufman County, Texas, is the fastest-growing county in the United States among places with 10,000 or more residents: 7.29% a year from 2020 to 2025, to 209,235 residents (Census PEP Vintage 2025). Long County, Georgia (5.81%) and Jasper County, South Carolina (5.73%) follow.
Data as of 2026-09-23. Population, growth and migration: PEP Vintage 2025 · 2020–2025. Income migration: IRS SOI 2022–2023 (2-yr lag).
The 10 fastest-growing places in the United States, 2020 to 2025
| Rank | Place | Population | Growth (% per year) | Net domestic migration | Net international migration | IRS net AGI migration |
|---|---|---|---|---|---|---|
| 1 | Kaufman County, Texas | 209,235 | 7.29%* | +53,458 | +1,654 | +$178.1M |
| 2 | Long County, Georgia | 21,557 | 5.81%* | +4,376 | +128 | +$15.4M |
| 3 | Jasper County, South Carolina | 38,533 | 5.73%* | +7,815 | +1,412 | +$107.9M |
| 4 | Liberty County, Texas | 121,364 | 5.59%* | +24,555 | +1,644 | +$102.8M |
| 5 | Dawson County, Georgia | 35,365 | 5.50%* | +7,736 | +220 | +$49.8M |
| 6 | Jackson County, Georgia | 99,265 | 5.28%* | +20,027 | +991 | +$175.3M |
| 7 | Rockwall County, Texas | 140,738 | 5.21%* | +27,790 | +1,075 | +$234.7M |
| 8 | Comal County, Texas | 209,166 | 5.04%* | +43,984 | +607 | +$421.8M |
| 9 | Brunswick County, North Carolina | 174,702 | 4.81% | +39,856 | +521 | +$504.0M |
| 10 | Pinal County, Arizona | 539,380 | 4.63% | +95,001 | +9,831 | +$622.3M |
* Growth above 5% a year. The Census estimate is shown as published; the pipeline marks, and does not alter, rates this high.
Fastest-growing counties by state
Each state page ranks its counties, parishes, boroughs or other county equivalents by population growth and by net domestic migration.
- Fastest-growing counties in Alabama
- Fastest-growing boroughs and census areas in Alaska
- Fastest-growing counties in Arizona
- Fastest-growing counties in Arkansas
- Fastest-growing counties in California
- Fastest-growing counties in Colorado
- Fastest-growing planning regions in Connecticut
- Fastest-growing counties in Delaware
- Fastest-growing places in District of Columbia
- Fastest-growing counties in Florida
- Fastest-growing counties in Georgia
- Fastest-growing counties in Hawaii
- Fastest-growing counties in Idaho
- Fastest-growing counties in Illinois
- Fastest-growing counties in Indiana
- Fastest-growing counties in Iowa
- Fastest-growing counties in Kansas
- Fastest-growing counties in Kentucky
- Fastest-growing parishes in Louisiana
- Fastest-growing counties in Maine
- Fastest-growing counties and Baltimore city in Maryland
- Fastest-growing counties in Massachusetts
- Fastest-growing counties in Michigan
- Fastest-growing counties in Minnesota
- Fastest-growing counties in Mississippi
- Fastest-growing counties and St. Louis city in Missouri
- Fastest-growing counties in Montana
- Fastest-growing counties in Nebraska
- Fastest-growing counties and Carson City in Nevada
- Fastest-growing counties in New Hampshire
- Fastest-growing counties in New Jersey
- Fastest-growing counties in New Mexico
- Fastest-growing counties in New York
- Fastest-growing counties in North Carolina
- Fastest-growing counties in North Dakota
- Fastest-growing counties in Ohio
- Fastest-growing counties in Oklahoma
- Fastest-growing counties in Oregon
- Fastest-growing counties in Pennsylvania
- Fastest-growing counties in Rhode Island
- Fastest-growing counties in South Carolina
- Fastest-growing counties in South Dakota
- Fastest-growing counties in Tennessee
- Fastest-growing counties in Texas
- Fastest-growing counties in Utah
- Fastest-growing counties in Vermont
- Fastest-growing counties and independent cities in Virginia
- Fastest-growing counties in Washington
- Fastest-growing counties in West Virginia
- Fastest-growing counties in Wisconsin
- Fastest-growing counties in Wyoming
Data as of 2026-09-23: sources and periods
- Population, growth and migration
- U.S. Census Bureau, Population Estimates Program: PEP Vintage 2025 · 2020–2025. census.gov/programs-surveys/popest
- Income migration (net AGI)
- Internal Revenue Service, Statistics of Income migration data: IRS SOI 2022–2023 (2-yr lag). irs.gov/statistics/soi-tax-stats-migration-data
How to read the table
- Population is the Census July 1 estimate of the latest vintage.
- Growth is the compound annual rate over 2020 to 2025.
- Net domestic and international migration are cumulative people over 2020 to 2025.
- IRS net AGI migration is adjusted gross income that moved in, less what moved out, for 2022 to 2023. A plus sign means a net inflow.
- Places with fewer than 10,000 residents are left out of the rankings.