RANKING · 1990 CENSUS · 16 SHOWN OF 16

Least educated, Maine counties · 1990

Maine counties with the smallest share of adults 25+ holding a bachelor's degree or higher (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

RANKPLACESTATEPOPBACHELOR'S DEGREE OR HIGHERVS 2000

01Somerset County, MEME51,62010.5%−11%

02Piscataquis County, MEME17,40912.3%−8%

03Aroostook County, MEME66,60912.5%−15%

04Androscoggin County, MEME116,48712.6%−13%

05Washington County, MEME31,33412.7%−13%

06Oxford County, MEME60,34612.7%−19%

07Waldo County, MEME40,69316.8%−25%

08Franklin County, MEME30,82417.7%−15%

09Penobscot County, MEME157,96717.7%−13%

10Kennebec County, MEME129,06718.1%−13%

11York County, MEME222,43419.0%−17%

12Knox County, MEME41,11719.8%−25%

13Hancock County, MEME57,17121.4%−21%

14Sagadahoc County, MEME37,97921.6%−14%

15Lincoln County, MEME36,59522.2%−17%

16Cumberland County, MEME317,22227.6%−20%

SHOWING 1–16 OF 16

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