RANKING · 1990 CENSUS · 24 SHOWN OF 24

Oldest by median age, Maryland counties · 1990

Maryland counties ranked by median age of residents (1990 ACS). This list covers the 24 counties in Maryland that qualify, ranked against each other statewide. The median across all 24 is 33.8.

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SAME RANKING BYCities States Metros ZIP codes

RELATEDLargest foreign-born population Most residents with a disability Largest veteran population Most uninsured people Largest senior population Most unmarried people

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPMEDIAN AGEVS –

01Talbot County, MDMD38,23839.7–

02Worcester County, MDMD54,45938.0–

03Allegany County, MDMD66,84837.7–

04Dorchester County, MDMD33,62837.0–

05Kent County, MDMD19,56536.7–

06Queen Anne's County, MDMD54,44835.6–

07Baltimore County, MDMD847,65035.2–

08Washington County, MDMD157,73134.5–

09Caroline County, MDMD34,11634.4–

10Somerset County, MDMD24,97334.3–

11Montgomery County, MDMD1,074,58234.0–

12Garrett County, MDMD28,37033.8–

13Carroll County, MDMD176,67733.4–

14Wicomico County, MDMD106,89933.3–

15Anne Arundel County, MDMD603,38032.8–

16Cecil County, MDMD107,13132.8–

17Baltimore, MDMD569,99732.7–

18Calvert County, MDMD94,48432.7–

19Howard County, MDMD339,18332.3–

20Frederick County, MDMD302,88332.3–

21Harford County, MDMD266,44632.2–

22Prince George's County, MDMD970,37431.0–

23Charles County, MDMD176,59330.2–

24St. Mary's County, MDMD116,69229.6–

SHOWING 1–24 OF 24

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS