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About this map

Half of residents are older than this, half younger. Retirement areas run 50+, college towns can be in the low 20s.

Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024).

U.S.
38.9
Maryland
39.4
Rankings
Full list

Top and bottom zip codes in Maryland

Zip codes with 1,000+ residents

Oldest zip codes (highest median age)

See all
  1. 121654Oxford68.7
  2. 220688Solomons63.8
  3. 321871Westover60.2
  4. 421657Queen Anne58.5
  5. 521661Rock Hall58.4
  6. 621912Warwick58.2
  7. 720629Dowell58.1
  8. 821561Swanton57
  9. 921663Saint Michaels56
  10. 1021530Flintstone56

Youngest zip codes (lowest median age)

See all
  1. 120742College Park19
  2. 221250Baltimore19.9
  3. 321252Towson20
  4. 421402Annapolis21
  5. 520670Patuxent River22.9
  6. 620740College Park23.5
  7. 720762Andrews Air Force Base24.4
  8. 820755Fort George G Meade25.1
  9. 921727Emmitsburg29.5
  10. 1020710Bladensburg31.7

Median age by county in Maryland

  1. 1Talbot County51.2
  2. 2Worcester County50.7
  3. 3Kent County48.6
  4. 4Garrett County48.3
  5. 5Queen Anne's County44.7
  6. 6Dorchester County43.5
  7. 7Carroll County41.3
  8. 8Allegany County41.2
  9. 9Calvert County40.8
  10. 10Washington County40.7
  11. 11Cecil County40.6
  12. 12Harford County40.5
  13. 13Montgomery County40.2
  14. 14Caroline County39.9
  15. 15Howard County39.8
  16. 16Baltimore County39.7
  17. 17Anne Arundel County39
  18. 18Frederick County39
  19. 19Charles County38.9
  20. 20Prince George's County38.5
  21. 21Somerset County38.1
  22. 22St. Mary's County37.2
  23. 23Baltimore city36.2
  24. 24Wicomico County36.2

Questions about this map

Which zip code has the highest median age in Maryland?

Among zip codes with at least 1,000 residents, 21654 (Oxford, MD) has the highest: 68.7.

Which zip code has the lowest median age in Maryland?

20742 (College Park, MD) has the lowest: 19.

What is the median age for the United States?

38.9; in Maryland it is 39.4.

Where does this data come from?

U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024). Half of residents are older than this, half younger. Retirement areas run 50+, college towns can be in the low 20s.

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