Find the last 4 digits (ZIP+4) for an address in 21230

ZIP 21230, Baltimore, MD is filled in. Just type the street address.

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ZIP Code 21230 – Baltimore, MD

Baltimore, Maryland · Baltimore city · Eastern time

ZIP code21230
CityBaltimore
StateMaryland
CountyBaltimore city
Population32,977
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area6.32 sq mi
Center (lat, long)39.2681, -76.6267

Area codes in this area

410443667

These are the area codes that most often serve ZIP 21230 (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

21203 Baltimore · 1.2 mi21235 Baltimore · 1.2 mi21241 Baltimore · 1.2 mi21263 Baltimore · 1.2 mi21264 Baltimore · 1.2 mi21270 Baltimore · 1.2 mi21273 Baltimore · 1.2 mi21275 Baltimore · 1.2 mi

About ZIP 21230

ZIP code 21230 is assigned to Baltimore, Maryland. It lies in Baltimore city. Its Census area covers about 6.32 square miles of land. The closest neighboring ZIP is 21203 (Baltimore), about 1.2 miles away.

Every address in 21230 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