RANKING · 2010 CENSUS · 14 SHOWN OF 14

Most racially diverse, Massachusetts counties · 2010

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.

Flip the list · Least racially diverse, US counties →

MassachusettsAll states All rankings

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, MAMA791,89185+9%

02Hampden County, MAMA464,33861+23%

03Middlesex County, MAMA1,669,97949+51%

04Essex County, MAMA826,65349+42%

05Nantucket County, MAMA14,75844+72%

06Norfolk County, MAMA739,74942+70%

07Worcester County, MAMA888,50241+51%

08Plymouth County, MAMA546,82933+71%

09Dukes County, MAMA21,21932+227%

10Bristol County, MAMA593,64032+92%

11Hampshire County, MAMA164,06531+50%

12Berkshire County, MAMA128,22421+91%

13Barnstable County, MAMA233,53918+94%

14Franklin County, MAMA70,69818+84%

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