RANKING · 2020 CENSUS · 14 SHOWN OF 14

Fastest shrinking, Massachusetts counties

Massachusetts counties with the steepest population decline since the prior decennial census. 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

RANKPLACESTATEPOPPOPULATION GROWTHVS 2000

01Berkshire County, MAMA128,224-1.7%−47%

02Franklin County, MAMA70,698-0.5%−123%

03Hampden County, MAMA464,338+0.5%−2903%

04Hampshire County, MAMA164,065+2.7%−31%

05Bristol County, MAMA593,640+5.6%+1%

06Barnstable County, MAMA233,539+6.1%−68%

07Plymouth County, MAMA546,829+7.3%−16%

08Worcester County, MAMA888,502+8.0%+37%

09Norfolk County, MAMA739,749+8.2%+48%

10Middlesex County, MAMA1,669,979+8.6%+79%

11Essex County, MAMA826,653+9.0%+13%

12Suffolk County, MAMA791,891+10.5%+169%

13Dukes County, MAMA21,219+24.6%−15%

14Nantucket County, MAMA14,758+40.1%−31%

SHOWING 1–14 OF 14

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UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES