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RANKING · 2020 CENSUS · 24 SHOWN OF 24

Oldest by median age, Maryland counties · 2020

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.

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SAME RANKING BYCitiesStatesMetrosZIP codes
RELATEDYoungest by median ageMost foreign-born residentsHighest uninsured rateMost womenMost menHighest disability rate
YEAR19902000201020202024
Oldest by median age by state
RANKPLACESTATEPOPMEDIAN AGEVS 2000
01Talbot County, MDMD38,23850.7+17%
02Worcester County, MDMD54,45950.5+17%
03Kent County, MDMD19,56549.2+19%
04Garrett County, MDMD28,37046.8+22%
05Dorchester County, MDMD33,62845.1+11%
06Queen Anne's County, MDMD54,44844.7+15%
07Allegany County, MDMD66,84843.8+12%
08Carroll County, MDMD176,67742.1+14%
09Washington County, MDMD157,73141.0+10%
10Calvert County, MDMD94,48440.9+14%
11Harford County, MDMD266,44640.8+13%
12Cecil County, MDMD107,13140.7+15%
13Caroline County, MDMD34,11640.0+8%
14Somerset County, MDMD24,97339.8+9%
15Montgomery County, MDMD1,074,58239.5+7%
16Baltimore County, MDMD847,65039.3+4%
17Howard County, MDMD339,18339.0+10%
18Anne Arundel County, MDMD603,38038.8+8%
19Charles County, MDMD176,59338.8+12%
20Frederick County, MDMD302,88338.7+9%
21Wicomico County, MDMD106,89937.9+6%
22St. Mary's County, MDMD116,69237.1+8%
23Prince George's County, MDMD970,37436.7+10%
24Baltimore, MDMD569,99735.5+1%
SHOWING 1–24 OF 24
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UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES