RANKING · 2000 CENSUS · 24 SHOWN OF 24

Oldest by median age, Maryland counties · 2000

Maryland counties ranked by median age of residents (2023 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

RELATEDYoungest by median age Most foreign-born residents Highest uninsured rate Most women Most men Highest disability rate

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPMEDIAN AGEVS 2000

01Talbot County, MDMD38,23843.3+0%

02Worcester County, MDMD54,45943.0+0%

03Kent County, MDMD19,56541.3+0%

04Dorchester County, MDMD33,62840.7+0%

05Allegany County, MDMD66,84839.1+0%

06Queen Anne's County, MDMD54,44838.8+0%

07Garrett County, MDMD28,37038.3+0%

08Baltimore County, MDMD847,65037.7+0%

09Washington County, MDMD157,73137.4+0%

10Caroline County, MDMD34,11637.0+0%

11Carroll County, MDMD176,67736.9+0%

12Montgomery County, MDMD1,074,58236.8+0%

13Somerset County, MDMD24,97336.5+0%

14Harford County, MDMD266,44636.2+0%

15Anne Arundel County, MDMD603,38036.0+0%

16Calvert County, MDMD94,48435.9+0%

17Wicomico County, MDMD106,89935.8+0%

18Frederick County, MDMD302,88335.6+0%

19Cecil County, MDMD107,13135.5+0%

20Howard County, MDMD339,18335.5+0%

21Baltimore, MDMD569,99735.0+0%

22Charles County, MDMD176,59334.6+0%

23St. Mary's County, MDMD116,69234.2+0%

24Prince George's County, MDMD970,37433.3+0%

SHOWING 1–24 OF 24

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UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES