RANKING · 2010 CENSUS · 24 SHOWN OF 24

Youngest by median age, Maryland counties · 2010

Maryland counties with the youngest median age (2023 ACS). This list covers the 24 counties in Maryland that qualify, ranked against each other statewide.

Flip the list · Oldest by median age, US counties →

MarylandAll states All rankings

SAME RANKING BYCities States Metros ZIP codes

RELATEDOldest 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

01Baltimore, MDMD569,99734.4−2%

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

03Wicomico County, MDMD106,89935.7−0%

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

05Somerset County, MDMD24,97336.5+0%

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

Download CSV (full list, 24 rows)

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