Find the last 4 digits (ZIP+4) for an address in 21043

ZIP 21043, Ellicott City, MD is filled in. Just type the street address.

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ZIP Code 21043 – Ellicott City, MD

Ellicott City, Maryland · Howard County · Eastern time

ZIP code21043
CityEllicott City
StateMaryland
CountyHoward CountyBaltimore County
Population48,525
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area17.1 sq mi
Center (lat, long)39.2558, -76.8015

Area codes in this area

410443667

These are the area codes that most often serve ZIP 21043 (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

21228 Catonsville · 3.1 mi21045 Columbia · 3.7 mi21075 Elkridge · 4.5 mi21250 Baltimore · 4.8 mi21042 Ellicott City · 5.2 mi21044 Columbia · 5.4 mi21244 Windsor Mill · 5.6 mi21046 Columbia · 5.9 mi

About ZIP 21043

ZIP code 21043 is assigned to Ellicott City, Maryland. It crosses 2 counties; most of its land is in Howard County. Its Census area covers about 17.1 square miles of land. The closest neighboring ZIP is 21228 (Catonsville), about 3.1 miles away.

Every address in 21043 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