RANKING · 2020 CENSUS · 500 SHOWN OF 3,131
Fastest shrinking, US counties · 2020
US counties with the steepest population decline from the 2010 census to 2020. Alexander County, Illinois leads at -36.4%. 3,131 counties qualify in total. Texas carries 6 of the top 25 entries.
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RANKPLACESTATEPOPPOPULATION GROWTHVS 2000
USUnited States331,449,281+7.7%–
UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS
Frequently asked
Which county has the lowest population growth?
Alexander County, Illinois ranks #1 with -36.4% (2020 Decennial Census).
What are the top 5 counties by population growth?
Alexander County, Illinois, Schleicher County, Texas, Edwards County, Texas, Dickens County, Texas, Blaine County, Oklahoma.
How many counties are in this ranking?
3,131 counties qualify after filtering for population minimums and data availability. The ranking covers 2020 Decennial Census data.
How is population growth measured?
Percent change in population from the prior decennial census. Source: US Census Bureau, 2020 Decennial Census.