
Source: Ammodramus / Public Domain / Wikimedia Commons
30. Roberts County, Texas
> Net population change, 2020-2021: -3.2% (-26 people)
> Net change from migration: -20 people
> Natural population change: -6 people
> Total population, 2021: 797
> Largest place in county: Miami

Source: Auseklis / iStock via Getty Images
29. Kings County, New York
> Net population change, 2020-2021: -3.2% (-86,341 people)
> Net change from migration: -99,455 people
> Natural population change: +14,713 people
> Total population, 2021: 2,641,052
> Largest place in county: Brooklyn (NYC)
28. Harding County, New Mexico
> Net population change, 2020-2021: -3.2% (-21 people)
> Net change from migration: -7 people
> Natural population change: -13 people
> Total population, 2021: 639
> Largest place in county: Roy

Source: ChuckSchugPhotography / iStock via Getty Images
27. San Mateo County, California
> Net population change, 2020-2021: -3.2% (-24,565 people)
> Net change from migration: -26,232 people
> Natural population change: +2,074 people
> Total population, 2021: 737,888
> Largest place in county: Daly City

Source: Brycia James / iStock Unreleased via Getty Images
26. Lowndes County, Alabama
> Net population change, 2020-2021: -3.2% (-332 people)
> Net change from migration: -290 people
> Natural population change: -38 people
> Total population, 2021: 9,965
> Largest place in county: Fort Deposit
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