Dundalk, Maryland

1 ZIP code · Eastern time

ZIP codes (largest first)

21222 · 59,407
Population65,969
StateMaryland
CountyBaltimore County
Time zoneEastern
Land area13.09 sq mi

Area codes in this area

410443667

These are the area codes that most often serve Dundalk (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.

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Population: U.S. Census Bureau, ACS 5-year estimates, 2024.