RANKING · 1990 CENSUS · 16 SHOWN OF 16

Oldest housing stock, Maine counties · 1990

Maine counties ranked by oldest median year of construction (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

RELATEDMost expensive homes Cheapest homes Highest median rent Lowest median rent Highest homeownership rate Highest renter share

YEAR1990 2010 2020 2024

RANKPLACESTATEPOPMEDIAN YEAR BUILTVS 2000

01Knox County, MEME41,1171950–

02Androscoggin County, MEME116,4871954–

03Aroostook County, MEME66,6091957–

04Cumberland County, MEME317,2221958–

05Lincoln County, MEME36,5951959–

06Oxford County, MEME60,3461960–

07Washington County, MEME31,3341960–

08Penobscot County, MEME157,9671961–

09Piscataquis County, MEME17,4091961–

10Sagadahoc County, MEME37,9791961–

11Somerset County, MEME51,6201961–

12Kennebec County, MEME129,0671962–

13Hancock County, MEME57,1711964–

14Waldo County, MEME40,6931964–

15Franklin County, MEME30,8241965–

16York County, MEME222,4341966–

SHOWING 1–16 OF 16

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