RANKING · 2010 CENSUS · 16 SHOWN OF 16

Oldest housing stock, Maine counties · 2010

Maine counties ranked by oldest median year of construction (2010 ACS). This list covers the 16 counties in Maine that qualify, ranked against each other statewide. The median across all 16 is 1970.

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SAME RANKING BYCities States Metros ZIP codes

YEAR1990 2010 2020 2024

RANKPLACESTATEPOPMEDIAN YEAR BUILTVS 1990

01Androscoggin County, MEME116,48719630%

02Aroostook County, MEME66,60919640%

03Knox County, MEME41,1171965+1%

04Kennebec County, MEME129,06719670%

05Piscataquis County, MEME17,40919690%

06Cumberland County, MEME317,2221970+1%

07Oxford County, MEME60,3461970+1%

08Somerset County, MEME51,62019700%

09Washington County, MEME31,3341970+1%

10Penobscot County, MEME157,9671971+1%

11Franklin County, MEME30,82419730%

12Lincoln County, MEME36,5951973+1%

13Sagadahoc County, MEME37,9791973+1%

14Hancock County, MEME57,1711974+1%

15Waldo County, MEME40,6931974+1%

16York County, MEME222,43419750%

SHOWING 1–16 OF 16

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