RANKING · 2010 CENSUS · 24 SHOWN OF 24

Oldest by median age, Maryland counties · 2010

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.

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

MarylandAll states All rankings

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

01Worcester County, MDMD54,45948.1+12%

02Talbot County, MDMD38,23847.4+9%

03Kent County, MDMD19,56545.6+10%

04Dorchester County, MDMD33,62843.3+6%

05Garrett County, MDMD28,37042.7+11%

06Queen Anne's County, MDMD54,44842.6+10%

07Carroll County, MDMD176,67741.1+11%

08Allegany County, MDMD66,84840.9+5%

09Calvert County, MDMD94,48440.1+12%

10Washington County, MDMD157,73139.7+6%

11Harford County, MDMD266,44639.4+9%

12Baltimore County, MDMD847,65039.1+4%

13Cecil County, MDMD107,13138.9+10%

14Caroline County, MDMD34,11638.7+5%

15Frederick County, MDMD302,88338.6+8%

16Montgomery County, MDMD1,074,58238.5+5%

17Anne Arundel County, MDMD603,38038.4+7%

18Howard County, MDMD339,18338.4+8%

19Charles County, MDMD176,59337.4+8%

20Somerset County, MDMD24,97336.5+0%

21St. Mary's County, MDMD116,69236.0+5%

22Wicomico County, MDMD106,89935.7−0%

23Prince George's County, MDMD970,37434.9+5%

24Baltimore, MDMD569,99734.4−2%

SHOWING 1–24 OF 24

Download CSV (full list, 24 rows)

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