RANKING · 2010 CENSUS · 24 SHOWN OF 24

Youngest by median age, Maryland counties · 2010

Maryland counties with the youngest median age (2010 ACS). This list covers the 24 counties in Maryland that qualify, ranked against each other statewide. The median across all 24 is 39.1.

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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 2000

01Baltimore, MDMD569,99734.4−2%

02Prince George's County, MDMD970,37434.9+5%

03Wicomico County, MDMD106,89935.70%

04St. Mary's County, MDMD116,69236.0+5%

05Somerset County, MDMD24,97336.50%

06Charles County, MDMD176,59337.4+8%

07Anne Arundel County, MDMD603,38038.4+7%

08Howard County, MDMD339,18338.4+8%

09Montgomery County, MDMD1,074,58238.5+5%

10Frederick County, MDMD302,88338.6+8%

11Caroline County, MDMD34,11638.7+5%

12Cecil County, MDMD107,13138.9+10%

13Baltimore County, MDMD847,65039.1+4%

14Harford County, MDMD266,44639.4+9%

15Washington County, MDMD157,73139.7+6%

16Calvert County, MDMD94,48440.1+12%

17Allegany County, MDMD66,84840.9+5%

18Carroll County, MDMD176,67741.1+11%

19Queen Anne's County, MDMD54,44842.6+10%

20Garrett County, MDMD28,37042.7+11%

21Dorchester County, MDMD33,62843.3+6%

22Kent County, MDMD19,56545.6+10%

23Talbot County, MDMD38,23847.4+9%

24Worcester County, MDMD54,45948.1+12%

SHOWING 1–24 OF 24

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