Find the last 4 digits (ZIP+4) for an address in 21030

ZIP 21030, Cockeysville, MD is filled in. Just type the street address.

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ZIP Code 21030 – Cockeysville, MD

Cockeysville, Maryland · Baltimore County · Eastern time

ZIP code21030
CityCockeysville
StateMaryland
CountyBaltimore County
Population25,827
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area24.05 sq mi
Center (lat, long)39.5158, -76.6988

Area codes in this area

410443667

These are the area codes that most often serve ZIP 21030 (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

21023 Butler · 2.3 mi21152 Sparks Glencoe · 2.8 mi21031 Hunt Valley · 2.9 mi21065 Hunt Valley · 3.1 mi21020 Boring · 5.7 mi21131 Phoenix · 5.9 mi21093 Lutherville Timonium · 6.2 mi21071 Glyndon · 6.3 mi

About ZIP 21030

ZIP code 21030 is assigned to Cockeysville, Maryland. It lies in Baltimore County. Its Census area covers about 24.05 square miles of land. The closest neighboring ZIP is 21023 (Butler), about 2.3 miles away.

Every address in 21030 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