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%−4.7 pts

02Berkshire County, MAMA128,224-0.6%+2.5 pts

03Franklin County, MAMA70,698-0.5%−2.5 pts

04Hampden County, MAMA464,338-0.3%−0.3 pts

05Hampshire County, MAMA164,065+1.1%−2.8 pts

06Norfolk County, MAMA739,749+1.9%−3.7 pts

07Barnstable County, MAMA233,539+2.0%−17.1 pts

08Essex County, MAMA826,653+2.1%−5.9 pts

09Middlesex County, MAMA1,669,979+2.3%−2.5 pts

10Bristol County, MAMA593,640+2.5%−3.1 pts

11Dukes County, MAMA21,219+3.0%−25.8 pts

12Plymouth County, MAMA546,829+3.0%−5.6 pts

13Worcester County, MAMA888,502+3.1%−2.8 pts

14Nantucket County, MAMA14,758+3.5%−54.8 pts

SHOWING 1–14 OF 14

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU POPULATION ESTIMATES