Find the last 4 digits (ZIP+4) for an address in 21810

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ZIP Code 21810 – Allen, MD

Allen, Maryland · Wicomico County · Eastern time

ZIP code21810
CityAllen
StateMaryland
CountyWicomico County
Population55
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area0.47 sq mi
Center (lat, long)38.2907, -75.6893

Area codes in this area

410443667

These are the area codes that most often serve ZIP 21810 (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

21822 Eden · 1.5 mi21826 Fruitland · 4 mi21801 Salisbury · 4.1 mi21853 Princess Anne · 6.3 mi21856 Quantico · 6.4 mi21865 Tyaskin · 7.5 mi21802 Salisbury · 7.5 mi21803 Salisbury · 7.5 mi

About ZIP 21810

ZIP code 21810 is assigned to Allen, Maryland. It lies in Wicomico County. Its Census area covers about 0.47 square miles of land. The closest neighboring ZIP is 21822 (Eden), about 1.5 miles away.

Every address in 21810 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