RANKING · 2024 ACS · 24 SHOWN OF 24

Oldest housing stock, Maryland counties

Maryland counties ranked by oldest median year of construction (2024 ACS). This list covers the 24 counties in Maryland 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

01Baltimore, MDMD569,9971947+0%

02Allegany County, MDMD66,8481959+1%

03Baltimore County, MDMD847,6501973+1%

04Washington County, MDMD157,7311974+1%

05Dorchester County, MDMD33,6281975+1%

06Prince George's County, MDMD970,3741977+1%

07Kent County, MDMD19,5651978+1%

08Montgomery County, MDMD1,074,5821980+1%

09Caroline County, MDMD34,1161981+1%

10Garrett County, MDMD28,3701982+1%

11Talbot County, MDMD38,2381983+1%

12Anne Arundel County, MDMD603,3801983+1%

13Carroll County, MDMD176,6771983+1%

14Wicomico County, MDMD106,8991984+1%

15Worcester County, MDMD54,4591985+0%

16Harford County, MDMD266,4461986+1%

17Somerset County, MDMD24,9731986+1%

18Cecil County, MDMD107,1311987+1%

19Howard County, MDMD339,1831989+1%

20Calvert County, MDMD94,4841990+1%

21Queen Anne's County, MDMD54,4481990+1%

22Charles County, MDMD176,5931991+1%

23Frederick County, MDMD302,8831991+1%

24St. Mary's County, MDMD116,6921992+1%

SHOWING 1–24 OF 24

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