RANKING · 2024 ACS · 16 SHOWN OF 16

Oldest housing stock, Maine counties

Maine counties ranked by oldest median year of construction (2024 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, MEME116,4871969+1%

02Aroostook County, MEME66,6091972+1%

03Knox County, MEME41,1171974+1%

04Kennebec County, MEME129,0671975+1%

05Washington County, MEME31,3341975+1%

06Cumberland County, MEME317,2221976+1%

07Oxford County, MEME60,3461977+1%

08Penobscot County, MEME157,9671977+1%

09Sagadahoc County, MEME37,9791977+1%

10Franklin County, MEME30,8241978+1%

11Lincoln County, MEME36,5951978+1%

12Piscataquis County, MEME17,4091978+1%

13Somerset County, MEME51,6201978+1%

14York County, MEME222,4341980+1%

15Hancock County, MEME57,1711982+1%

16Waldo County, MEME40,6931982+1%

SHOWING 1–16 OF 16

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES