RANKING · 1990 CENSUS · 14 SHOWN OF 14

Largest by population, Massachusetts counties · 1990

The most populous Massachusetts counties as of the 1990 population estimates. This list covers the 14 counties in Massachusetts that qualify, ranked against each other statewide. The median across all 14 is 456,310.

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SAME RANKING BYCities States Metros ZIP codes

YEAR1990 2000 2010 2020 2025

RANKPLACESTATETOTAL POPULATIONVS –

01Middlesex County, MAMA1,398,468–

02Worcester County, MAMA709,705–

03Essex County, MAMA670,080–

04Suffolk County, MAMA663,906–

05Norfolk County, MAMA616,087–

06Bristol County, MAMA506,325–

07Hampden County, MAMA456,310–

08Plymouth County, MAMA435,276–

09Barnstable County, MAMA186,605–

10Hampshire County, MAMA146,568–

11Berkshire County, MAMA139,352–

12Franklin County, MAMA70,092–

13Dukes County, MAMA11,639–

14Nantucket County, MAMA6,012–

SHOWING 1–14 OF 14

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