RANKING · 2020 CENSUS · 16 SHOWN OF 16

Least racially diverse, Maine counties · 2020

Maine counties with the lowest CensusEasy Diversity Score, where most residents share the same 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

01Somerset County, MEME51,62011+328%

02Lincoln County, MEME36,59512+382%

03Waldo County, MEME40,69313+418%

04Piscataquis County, MEME17,40913+402%

05Hancock County, MEME57,17113+319%

06Oxford County, MEME60,34613+407%

07Knox County, MEME41,11713+378%

08Sagadahoc County, MEME37,97914+118%

09Franklin County, MEME30,82414+369%

10Kennebec County, MEME129,06715+266%

11Aroostook County, MEME66,60915+320%

12York County, MEME222,43417+266%

13Penobscot County, MEME157,96718+306%

14Washington County, MEME31,33424+590%

15Cumberland County, MEME317,22228+242%

16Androscoggin County, MEME116,48731+478%

SHOWING 1–16 OF 16

Download CSV (full list, 16 rows)How this score is calculated

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