Data / Rankings / Median age / Counties in Maryland

Counties in Maryland by median age

Talbot County had the highest median age of 24 counties in 2021, at 51 years. Baltimore city had the lowest, at 35.7 years. The median was 39.9 years and the figure for Maryland was 38.9 years. Source: the U.S. Census Bureau.

Highest51Talbot County
Lowest35.7Baltimore city
Median39.924 counties
Maryland38.9History

All counties, 2021

CSVChart (SVG)

Talbot CountyTalbot County: 51 years51Worcester CountyWorcester County: 50.4 years50.4Garrett CountyGarrett County: 47.3 years47.3Kent CountyKent County: 47.1 years47.1Queen Anne's CountyQueen Anne's County: 44.7 years44.7Dorchester CountyDorchester County: 44.1 years44.1Carroll CountyCarroll County: 41.7 years41.7Allegany CountyAllegany County: 41.4 years41.4Cecil CountyCecil County: 41 years41Washington CountyWashington County: 40.6 years40.6Harford CountyHarford County: 40.4 years40.4Calvert CountyCalvert County: 40.2 years40.2Montgomery CountyMontgomery County: 39.6 years39.6Baltimore CountyBaltimore County: 39.4 years39.4Caroline CountyCaroline County: 39.2 years39.2Howard CountyHoward County: 39 years39Frederick CountyFrederick County: 38.8 years38.8Charles CountyCharles County: 38.7 years38.7Anne Arundel CountyAnne Arundel County: 38.5 years38.5Prince George's CountyPrince George's County: 37.8 years37.8Somerset CountySomerset County: 37 years37St. Mary's CountySt. Mary's County: 36.7 years36.7Wicomico CountyWicomico County: 36 years36Baltimore cityBaltimore city: 35.7 years35.7
years. Source: U.S. Census Bureau. Retrieved 2026-10-08.

Full ranking

RankCounties2021
years
1Talbot County51
2Worcester County50.4
3Garrett County47.3
4Kent County47.1
5Queen Anne's County44.7
6Dorchester County44.1
7Carroll County41.7
8Allegany County41.4
9Cecil County41
10Washington County40.6
11Harford County40.4
12Calvert County40.2
13Montgomery County39.6
14Baltimore County39.4
15Caroline County39.2
16Howard County39
17Frederick County38.8
18Charles County38.7
19Anne Arundel County38.5
20Prince George's County37.8
21Somerset County37
22St. Mary's County36.7
23Wicomico County36
24Baltimore city35.7

Other periods

About this ranking

Age that divides the resident population into two halves of equal size. Spain and the EU: on 1 January. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. American Community Survey 5-year estimates, table B01002: median age, total population. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b01002.dat. Retrieved 2026-10-08.

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Questions

Which county has the highest median age?

Talbot County, with 51 years in 2021, according to the U.S. Census Bureau.

Which county has the lowest median age?

Baltimore city, with 35.7 years in 2021.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, American Community Survey 5-year estimates, table B01002: median age, total population. Retrieved 2026-10-08.

Median age: other rankings

Counties in Maryland: more rankings