Find the last 4 digits (ZIP+4) for an address in 21737

ZIP 21737, Glenelg, MD is filled in. Just type the street address.

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ZIP Code 21737 – Glenelg, MD

Glenelg, Maryland · Howard County · Eastern time

ZIP code21737
CityGlenelg
StateMaryland
CountyHoward County
Population2,474
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area5.12 sq mi
Center (lat, long)39.2483, -77.0271

Area codes in this area

410443667

These are the area codes that most often serve ZIP 21737 (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

21036 Dayton · 1.4 mi21738 Glenwood · 2.2 mi20833 Brookeville · 3.2 mi21029 Clarksville · 4.3 mi21041 Ellicott City · 4.6 mi21150 Simpsonville · 4.6 mi20862 Brinklow · 4.7 mi21794 West Friendship · 4.8 mi

About ZIP 21737

ZIP code 21737 is assigned to Glenelg, Maryland. It lies in Howard County. Its Census area covers about 5.12 square miles of land. The closest neighboring ZIP is 21036 (Dayton), about 1.4 miles away.

Every address in 21737 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