RANKING · 2025 ACS · 14 SHOWN OF 14

Most sparsely populated, Massachusetts counties

Massachusetts counties with the fewest residents per square mile (2023). This list covers the 14 counties in Massachusetts that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros

RELATEDLargest by population Fastest growing Fastest shrinking Most densely populated Best broadband access Worst broadband access

YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION DENSITYVS 2000

01Franklin County, MAMA70,698101−1%

02Berkshire County, MAMA128,224138−5%

03Dukes County, MAMA21,219206+42%

04Hampshire County, MAMA164,065311+8%

05Nantucket County, MAMA14,758319+55%

06Worcester County, MAMA888,502588+18%

07Barnstable County, MAMA233,539592+5%

08Hampden County, MAMA464,338753+2%

09Plymouth County, MAMA546,829830+16%

10Bristol County, MAMA593,6401,073+11%

11Essex County, MAMA826,6531,678+14%

12Norfolk County, MAMA739,7491,868+14%

13Middlesex County, MAMA1,669,9792,042+14%

14Suffolk County, MAMA791,89113,594+15%

SHOWING 1–14 OF 14

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