RANKING · 1990 CENSUS · 16 SHOWN OF 16

Youngest by median age, Maine counties · 1990

Maine counties with the youngest median age (1990 ACS). This list covers the 16 counties in Maine that qualify, ranked against each other statewide. The median across all 16 is 34.2.

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SAME RANKING BYCities States Metros ZIP codes

RELATEDLargest foreign-born population Most residents with a disability Largest veteran population Most uninsured people Largest senior population Most unmarried people

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPMEDIAN AGEVS –

01Penobscot County, MEME157,96732.6–

02Sagadahoc County, MEME37,97932.7–

03Androscoggin County, MEME116,48732.9–

04Franklin County, MEME30,82432.9–

05Aroostook County, MEME66,60933.2–

06Cumberland County, MEME317,22233.7–

07York County, MEME222,43433.7–

08Somerset County, MEME51,62033.8–

09Kennebec County, MEME129,06734.2–

10Waldo County, MEME40,69334.7–

11Oxford County, MEME60,34635.0–

12Piscataquis County, MEME17,40935.4–

13Washington County, MEME31,33435.7–

14Hancock County, MEME57,17135.8–

15Knox County, MEME41,11737.0–

16Lincoln County, MEME36,59537.3–

SHOWING 1–16 OF 16

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS