Find the last 4 digits (ZIP+4) for an address in 21056

ZIP 21056, Gibson Island, MD is filled in. Just type the street address.

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ZIP Code 21056 – Gibson Island, MD

Gibson Island, Maryland · Anne Arundel County · Eastern time

ZIP code21056
CityGibson Island
StateMaryland
CountyAnne Arundel County
Population291
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area1.38 sq mi
Center (lat, long)39.0790, -76.4362

Area codes in this area

410443667

These are the area codes that most often serve ZIP 21056 (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

21122 Pasadena · 3.7 mi21012 Arnold · 3.9 mi21409 Annapolis · 4.2 mi21402 Annapolis · 6.5 mi21146 Severna Park · 6.6 mi21405 Annapolis · 6.9 mi21404 Annapolis · 7.6 mi21052 Fort Howard · 8.7 mi

About ZIP 21056

ZIP code 21056 is assigned to Gibson Island, Maryland. It lies in Anne Arundel County. Its Census area covers about 1.38 square miles of land. The closest neighboring ZIP is 21122 (Pasadena), about 3.7 miles away.

Every address in 21056 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