RANKING · 2020 CENSUS · 14 SHOWN OF 14

Most racially diverse, Massachusetts counties · 2020

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, MAMA791,89187+12%

02Hampden County, MAMA464,33869+39%

03Middlesex County, MAMA1,669,97962+92%

04Essex County, MAMA826,65361+79%

05Nantucket County, MAMA14,75860+134%

06Norfolk County, MAMA739,74958+135%

07Worcester County, MAMA888,50256+103%

08Bristol County, MAMA593,64046+180%

09Plymouth County, MAMA546,82944+132%

10Hampshire County, MAMA164,06544+113%

11Dukes County, MAMA21,21936+269%

12Berkshire County, MAMA128,22431+175%

13Barnstable County, MAMA233,53928+205%

14Franklin County, MAMA70,69827+182%

SHOWING 1–14 OF 14

Download CSV (full list, 14 rows)How this score is calculated

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