RANKING · 1990 CENSUS · 16 SHOWN OF 16

Most graduate degrees, Maine counties · 1990

Maine counties ranked by the share of adults 25+ holding a graduate or professional degree (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

RELATEDMost college graduates Most educated Least educated Fewest graduate degrees

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPGRADUATE DEGREEVS –

01Cumberland County, MEME317,2229.2%–

02Hancock County, MEME57,1717.5%–

03Lincoln County, MEME36,5957.5%–

04Penobscot County, MEME157,9676.3%–

05Kennebec County, MEME129,0676.2%–

06Sagadahoc County, MEME37,9796.1%–

07Knox County, MEME41,1176.0%–

08York County, MEME222,4345.7%–

09Franklin County, MEME30,8245.6%–

10Waldo County, MEME40,6935.4%–

11Oxford County, MEME60,3464.2%–

12Washington County, MEME31,3344.0%–

13Androscoggin County, MEME116,4873.8%–

14Aroostook County, MEME66,6093.6%–

15Piscataquis County, MEME17,4093.5%–

16Somerset County, MEME51,6203.2%–

SHOWING 1–16 OF 16

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