RANKING · 2000 CENSUS · 14 SHOWN OF 14

Most population gained, Massachusetts counties · 2000

Massachusetts counties that added the most residents from the 1990 census to 2000, by raw count of people rather than percentage. This list covers the 14 counties in Massachusetts that qualify, ranked against each other statewide. The median across all 14 is +28,353.

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SAME RANKING BYCities States Metros

RELATEDLargest by population Fastest growing Fastest shrinking Most population lost Most densely populated Most sparsely populated

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION CHANGEVS –

01Middlesex County, MAMA1,669,979+66,928–

02Essex County, MAMA826,653+53,339–

03Worcester County, MAMA888,502+41,258–

04Plymouth County, MAMA546,829+37,546–

05Barnstable County, MAMA233,539+35,625–

06Norfolk County, MAMA739,749+34,221–

07Bristol County, MAMA593,640+28,353–

08Suffolk County, MAMA791,891+25,901–

09Hampshire County, MAMA164,065+5,683–

10Nantucket County, MAMA14,758+3,508–

11Dukes County, MAMA21,219+3,348–

12Franklin County, MAMA70,698+1,443–

13Hampden County, MAMA464,338-82–

14Berkshire County, MAMA128,224-4,399–

SHOWING 1–14 OF 14

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS