Find the last 4 digits (ZIP+4) for an address in 21012

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ZIP Code 21012 – Arnold, MD

Arnold, Maryland · Anne Arundel County · Eastern time

ZIP code21012
CityArnold
StateMaryland
CountyAnne Arundel County
Population22,570
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area9.78 sq mi
Center (lat, long)39.0466, -76.4956

Area codes in this area

410443667

These are the area codes that most often serve ZIP 21012 (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

21405 Annapolis · 3.1 mi21409 Annapolis · 3.4 mi21056 Gibson Island · 3.9 mi21146 Severna Park · 4.1 mi21402 Annapolis · 4.2 mi21122 Pasadena · 4.7 mi21404 Annapolis · 4.7 mi21401 Annapolis · 5.1 mi

About ZIP 21012

ZIP code 21012 is assigned to Arnold, Maryland. It lies in Anne Arundel County. Its Census area covers about 9.78 square miles of land. The closest neighboring ZIP is 21405 (Annapolis), about 3.1 miles away.

Every address in 21012 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