Find the last 4 digits (ZIP+4) for an address in 21220

ZIP 21220, Middle River, MD is filled in. Just type the street address.

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ZIP Code 21220 – Middle River, MD

Middle River, Maryland · Baltimore County · Eastern time

ZIP code21220
CityMiddle River
StateMaryland
CountyBaltimore County
Population42,824
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area21.18 sq mi
Center (lat, long)39.3431, -76.3909

Area codes in this area

410443667

These are the area codes that most often serve ZIP 21220 (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

21027 Chase · 1.8 mi21162 White Marsh · 3.3 mi21221 Essex · 4.3 mi21128 Perry Hall · 5.2 mi21237 Rosedale · 5.6 mi21236 Nottingham · 5.9 mi21156 Upper Falls · 6 mi21010 Gunpowder · 6.2 mi

About ZIP 21220

ZIP code 21220 is assigned to Middle River, Maryland. It lies in Baltimore County. Its Census area covers about 21.18 square miles of land. The closest neighboring ZIP is 21027 (Chase), about 1.8 miles away.

Every address in 21220 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