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. The median across all 16 is 1977.

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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%

04▲1Kennebec County, MEME129,0671975+1%

05▲2Washington County, MEME31,3341975+1%

06▼2Cumberland County, MEME317,2221976+1%

07▲1Oxford County, MEME60,3461977+1%

08▲1Penobscot County, MEME157,9671977+1%

09▲1Sagadahoc County, MEME37,9791977+1%

10▲1Franklin County, MEME30,8241978+1%

11▲2Lincoln County, MEME36,5951978+1%

12▼6Piscataquis County, MEME17,4091978+1%

13▼1Somerset 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 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES