Find the last 4 digits (ZIP+4) for an address in 21921

ZIP 21921, Elkton, MD is filled in. Just type the street address.

Addresses are checked through our secure proxy. Bot checks use Cloudflare Turnstile. Each device can run 5 live checks per day; repeats of the same address are free.

ZIP Code 21921 – Elkton, MD

Elkton, Maryland · Cecil County · Eastern time

ZIP code21921
CityElkton
StateMaryland
CountyCecil County
Population45,527
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area94.73 sq mi
Center (lat, long)39.6271, -75.8599

Area codes in this area

410443667

These are the area codes that most often serve ZIP 21921 (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

21916 Childs · 1.5 mi21922 Elkton · 2 mi21920 Elk Mills · 2.2 mi21901 North East · 6.4 mi19351 Lewisville · 6.6 mi19716 Newark · 6.7 mi19717 Newark · 6.8 mi19702 Newark · 6.9 mi

About ZIP 21921

ZIP code 21921 is assigned to Elkton, Maryland. It lies in Cecil County. Its Census area covers about 94.73 square miles of land. The closest neighboring ZIP is 21916 (Childs), about 1.5 miles away.

Every address in 21921 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