RANKING · 1990 CENSUS · 16 SHOWN OF 16

Most racially diverse, Maine counties · 1990

Maine 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 16 counties in Maine that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros ZIP codes

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPDIVERSITY SCOREVS 2000

01Washington County, MEME31,33412+241%

02Aroostook County, MEME66,6098+125%

03Sagadahoc County, MEME37,9798+21%

04Cumberland County, MEME317,2227−19%

05Penobscot County, MEME157,9677+46%

06York County, MEME222,4345+12%

07Androscoggin County, MEME116,4874−16%

08Kennebec County, MEME129,0674+1%

09Hancock County, MEME57,1714+29%

10Lincoln County, MEME36,5954+55%

11Franklin County, MEME30,8243+2%

12Waldo County, MEME40,6933+26%

13Piscataquis County, MEME17,4093+18%

14Somerset County, MEME51,6203+4%

15Oxford County, MEME60,3462−7%

16Knox County, MEME41,1172−13%

SHOWING 1–16 OF 16

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