Find the last 4 digits (ZIP+4) for an address in 21237

ZIP 21237, Rosedale, MD is filled in. Just type the street address.

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ZIP Code 21237 – Rosedale, MD

Rosedale, Maryland · Baltimore County · Eastern time

ZIP code21237
CityRosedale
StateMaryland
CountyBaltimore CountyBaltimore city
Population31,425
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area11.25 sq mi
Center (lat, long)39.3415, -76.4953

Area codes in this area

410443667

These are the area codes that most often serve ZIP 21237 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.

Map

Nearby ZIP codes

21206 Baltimore · 2.3 mi21236 Nottingham · 3.3 mi21214 Baltimore · 3.8 mi21234 Parkville · 4.1 mi21205 Baltimore · 4.6 mi21251 Baltimore · 4.6 mi21221 Essex · 4.6 mi21213 Baltimore · 4.8 mi

About ZIP 21237

ZIP code 21237 is assigned to Rosedale, Maryland. It crosses 2 counties; most of its land is in Baltimore County. Its Census area covers about 11.25 square miles of land. The closest neighboring ZIP is 21206 (Baltimore), about 2.3 miles away.

Every address in 21237 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.

Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources