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 (1990 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 –

01Somerset County, MEME51,62010.5%–

02Piscataquis County, MEME17,40912.3%–

03Aroostook County, MEME66,60912.5%–

04Androscoggin County, MEME116,48712.6%–

05Washington County, MEME31,33412.7%–

06Oxford County, MEME60,34612.7%–

07Waldo County, MEME40,69316.8%–

08Franklin County, MEME30,82417.7%–

09Penobscot County, MEME157,96717.7%–

10Kennebec County, MEME129,06718.1%–

11York County, MEME222,43419.0%–

12Knox County, MEME41,11719.8%–

13Hancock County, MEME57,17121.4%–

14Sagadahoc County, MEME37,97921.6%–

15Lincoln County, MEME36,59522.2%–

16Cumberland County, MEME317,22227.6%–

SHOWING 1–16 OF 16

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS