Find the last 4 digits (ZIP+4) for an address in 21228

ZIP 21228, Catonsville, MD is filled in. Just type the street address.

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ZIP Code 21228 – Catonsville, MD

Catonsville, Maryland · Baltimore County · Eastern time

ZIP code21228
CityCatonsville
StateMaryland
CountyBaltimore CountyBaltimore city
Population50,492
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area15.58 sq mi
Center (lat, long)39.2729, -76.7477

Area codes in this area

410443667

These are the area codes that most often serve ZIP 21228 (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

21250 Baltimore · 2.3 mi21043 Ellicott City · 3.1 mi21229 Baltimore · 3.1 mi21207 Gwynn Oak · 3.8 mi21227 Halethorpe · 4.3 mi21244 Windsor Mill · 4.6 mi21075 Elkridge · 4.8 mi21216 Baltimore · 4.8 mi

About ZIP 21228

ZIP code 21228 is assigned to Catonsville, Maryland. It crosses 2 counties; most of its land is in Baltimore County. Its Census area covers about 15.58 square miles of land. The closest neighboring ZIP is 21250 (Baltimore), about 2.3 miles away.

Every address in 21228 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