Find the last 4 digits (ZIP+4) for an address in 21912

ZIP 21912, Warwick, MD is filled in. Just type the street address.

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ZIP Code 21912 – Warwick, MD

Warwick, Maryland · Cecil County · Eastern time

ZIP code21912
CityWarwick
StateMaryland
CountyCecil CountyNew Castle County
Population1,536
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area33.87 sq mi
Center (lat, long)39.4194, -75.8186

Area codes in this area

410443667

These are the area codes that most often serve ZIP 21912 (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

21913 Cecilton · 2.8 mi21930 Georgetown · 5 mi21915 Chesapeake City · 5.5 mi21635 Galena · 6 mi21919 Earleville · 6.1 mi21650 Massey · 7.5 mi19730 Odessa · 8.8 mi19709 Middletown · 9.1 mi

About ZIP 21912

ZIP code 21912 is assigned to Warwick, Maryland. It crosses 2 counties; most of its land is in Cecil County. Its Census area covers about 33.87 square miles of land. The closest neighboring ZIP is 21913 (Cecilton), about 2.8 miles away.

Every address in 21912 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