RANKING · 1990 CENSUS · 14 SHOWN OF 14

Most racially diverse, Massachusetts counties · 1990

Massachusetts counties ranked by the CensusEasy Diversity Score (0 to 100), the chance two random residents are of a different race or ethnicity (2023 ACS). This list covers the 14 counties in Massachusetts that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros ZIP codes

RELATEDOldest by median age Youngest by median age Most foreign-born residents Highest uninsured rate Most women Most men

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPDIVERSITY SCOREVS 2000

01Suffolk County, MAMA791,89173−6%

02Hampden County, MAMA464,33848−4%

03Essex County, MAMA826,65332−7%

04Middlesex County, MAMA1,669,97925−23%

05Worcester County, MAMA888,50224−13%

06Hampshire County, MAMA164,06520−3%

07Plymouth County, MAMA546,82920+3%

08Dukes County, MAMA21,21920+100%

09Bristol County, MAMA593,64016−3%

10Norfolk County, MAMA739,74916−37%

11Barnstable County, MAMA233,53912+29%

12Berkshire County, MAMA128,2249−17%

13Nantucket County, MAMA14,7588−69%

14Franklin County, MAMA70,6988−21%

SHOWING 1–14 OF 14

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