RANKING · 1990 CENSUS · 24 SHOWN OF 24

Youngest by median age, Maryland counties · 1990

Maryland counties with the youngest median age (1990 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

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 –

01St. Mary's County, MDMD116,69229.6–

02Charles County, MDMD176,59330.2–

03Prince George's County, MDMD970,37431.0–

04Harford County, MDMD266,44632.2–

05Frederick County, MDMD302,88332.3–

06Howard County, MDMD339,18332.3–

07Calvert County, MDMD94,48432.7–

08Baltimore, MDMD569,99732.7–

09Cecil County, MDMD107,13132.8–

10Anne Arundel County, MDMD603,38032.8–

11Wicomico County, MDMD106,89933.3–

12Carroll County, MDMD176,67733.4–

13Garrett County, MDMD28,37033.8–

14Montgomery County, MDMD1,074,58234.0–

15Somerset County, MDMD24,97334.3–

16Caroline County, MDMD34,11634.4–

17Washington County, MDMD157,73134.5–

18Baltimore County, MDMD847,65035.2–

19Queen Anne's County, MDMD54,44835.6–

20Kent County, MDMD19,56536.7–

21Dorchester County, MDMD33,62837.0–

22Allegany County, MDMD66,84837.7–

23Worcester County, MDMD54,45938.0–

24Talbot County, MDMD38,23839.7–

SHOWING 1–24 OF 24

Download CSV (full list, 24 rows)

UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS