Find the last 4 digits (ZIP+4) for an address in 21702

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ZIP Code 21702 – Frederick, MD

Frederick, Maryland · Frederick County · Eastern time

ZIP code21702
CityFrederick
StateMaryland
CountyFrederick County
Population49,605
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area41.72 sq mi
Center (lat, long)39.4793, -77.4432

Area codes in this area

227240301

These are the area codes that most often serve ZIP 21702 (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

21709 Frederick · 2.8 mi21705 Frederick · 5.2 mi21793 Walkersville · 5.3 mi21714 Braddock Heights · 5.9 mi21701 Frederick · 6.4 mi21769 Middletown · 7.2 mi21773 Myersville · 7.2 mi21788 Thurmont · 7.8 mi

About ZIP 21702

ZIP code 21702 is assigned to Frederick, Maryland. It lies in Frederick County. Its Census area covers about 41.72 square miles of land. The closest neighboring ZIP is 21709 (Frederick), about 2.8 miles away.

Every address in 21702 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