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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 (1990 ACS). This list covers the 14 counties in Massachusetts that qualify, ranked against each other statewide. The median across all 14 is 18.

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RANKPLACESTATEPOPDIVERSITY SCOREVS –
01Suffolk County, MAMA791,89169–
02Hampden County, MAMA464,33839–
03Essex County, MAMA826,65323–
04Middlesex County, MAMA1,669,97923–
05Worcester County, MAMA888,50220–
06Dukes County, MAMA21,21919–
07Plymouth County, MAMA546,82918–
08Hampshire County, MAMA164,06518–
09Norfolk County, MAMA739,74915–
10Bristol County, MAMA593,64014–
11Barnstable County, MAMA233,53911–
12Berkshire County, MAMA128,2249–
13Nantucket County, MAMA14,7588–
14Franklin County, MAMA70,6986–
SHOWING 1–14 OF 14

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