Find the last 4 digits (ZIP+4) for an address in 21648

ZIP 21648, Madison, MD is filled in. Just type the street address.

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ZIP Code 21648 – Madison, MD

Madison, Maryland · Dorchester County · Eastern time

ZIP code21648
CityMadison
StateMaryland
CountyDorchester County
Population172
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area9.38 sq mi
Center (lat, long)38.5088, -76.2398

Area codes in this area

410443667

These are the area codes that most often serve ZIP 21648 (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

21677 Woolford · 4.4 mi21669 Taylors Island · 4.4 mi21622 Church Creek · 7.8 mi21613 Cambridge · 8.7 mi21654 Oxford · 13.8 mi20657 Lusby · 13.8 mi21671 Tilghman · 13.9 mi21673 Trappe · 14 mi

About ZIP 21648

ZIP code 21648 is assigned to Madison, Maryland. It lies in Dorchester County. Its Census area covers about 9.38 square miles of land. The closest neighboring ZIP is 21677 (Woolford), about 4.4 miles away.

Every address in 21648 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