Rosedale, Maryland

1 ZIP code · Eastern time

ZIP codes (largest first)

21237 · 31,425
Population20,002
StateMaryland
CountyBaltimore County
Time zoneEastern
Land area6.86 sq mi

Area codes in this area

410443667

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

Find the ZIP+4 for an address in Rosedale

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