Find the last 4 digits (ZIP+4) for an address in 21207

ZIP 21207, Gwynn Oak, MD is filled in. Just type the street address.

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ZIP Code 21207 – Gwynn Oak, MD

Gwynn Oak, Maryland · Baltimore County · Eastern time

ZIP code21207
CityGwynn Oak
StateMaryland
CountyBaltimore CountyBaltimore city
Population47,099
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area10.35 sq mi
Center (lat, long)39.3242, -76.7195

Area codes in this area

410443667

These are the area codes that most often serve ZIP 21207 (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

21215 Baltimore · 2.5 mi21216 Baltimore · 2.7 mi21229 Baltimore · 3.1 mi21244 Windsor Mill · 3.1 mi21282 Pikesville · 3.5 mi21228 Catonsville · 3.8 mi21208 Pikesville · 4.1 mi21211 Baltimore · 4.3 mi

About ZIP 21207

ZIP code 21207 is assigned to Gwynn Oak, Maryland. It crosses 2 counties; most of its land is in Baltimore County. Its Census area covers about 10.35 square miles of land. The closest neighboring ZIP is 21215 (Baltimore), about 2.5 miles away.

Every address in 21207 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