RANKING · 2025 ESTIMATES · 14 SHOWN OF 14

Fastest shrinking, Massachusetts counties

Massachusetts counties with the steepest population decline from the 2020 census to 2025. This list covers the 14 counties in Massachusetts that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION GROWTHVS 2000

01Suffolk County, MAMA791,891-0.8%−119%

02Berkshire County, MAMA128,224-0.6%−80%

03Franklin County, MAMA70,698-0.5%−123%

04Hampden County, MAMA464,338-0.3%+1676%

05Hampshire County, MAMA164,065+1.1%−72%

06Norfolk County, MAMA739,749+1.9%−66%

07Barnstable County, MAMA233,539+2.0%−90%

08Essex County, MAMA826,653+2.1%−74%

09Middlesex County, MAMA1,669,979+2.3%−51%

10Bristol County, MAMA593,640+2.5%−55%

11Dukes County, MAMA21,219+3.0%−90%

12Plymouth County, MAMA546,829+3.0%−65%

13Worcester County, MAMA888,502+3.1%−47%

14Nantucket County, MAMA14,758+3.5%−94%

SHOWING 1–14 OF 14

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU POPULATION ESTIMATES