Special Report

This Is America's Fastest Growing County

Source: BOB WESTON / iStock via Getty Images

15. Kaufman County, Texas
> 2020 population: 145,310
> 2010 population: 103,350
> Pct. Change in population: 40.6%

14. Madison County, Idaho
> 2020 population: 52,913
> 2010 population: 37,536
> Pct. Change in population: 41.0%

Source: Thomson200 / Wikimedia Commons / Public Domain

13. Forsyth County, Georgia
> 2020 population: 251,283
> 2010 population: 175,511
> Pct. Change in population: 43.2%

Source: GabrielPevide / Getty Images

12. St. Johns County, Florida
> 2020 population: 273,425
> 2010 population: 190,039
> Pct. Change in population: 43.9%

Source: BOB WESTON / iStock via Getty Images

11. Williamson County, Texas
> 2020 population: 609,017
> 2010 population: 422,679
> Pct. Change in population: 44.1%

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