RANKING · 2020 CENSUS · 16 SHOWN OF 16

Oldest housing stock, Maine counties · 2020

Maine counties ranked by oldest median year of construction (2020 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 1990

01Androscoggin County, MEME116,4871967+1%

02Aroostook County, MEME66,6091971+1%

03Knox County, MEME41,1171971+1%

04Cumberland County, MEME317,2221974+1%

05Kennebec County, MEME129,0671974+1%

06Piscataquis County, MEME17,4091975+1%

07Washington County, MEME31,3341975+1%

08Oxford County, MEME60,3461976+1%

09Penobscot County, MEME157,9671976+1%

10Sagadahoc County, MEME37,9791976+1%

11Franklin County, MEME30,8241977+1%

12Somerset County, MEME51,6201977+1%

13Lincoln County, MEME36,5951978+1%

14York County, MEME222,4341979+1%

15Hancock County, MEME57,1711980+1%

16Waldo County, MEME40,6931983+1%

SHOWING 1–16 OF 16

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