Find the last 4 digits (ZIP+4) for an address in 21705

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ZIP Code 21705 – Frederick, MD

Frederick, Maryland · Frederick County · Eastern time

ZIP code21705
CityFrederick
StateMaryland
CountyFrederick County
Population6
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area0.02 sq mi
Center (lat, long)39.4089, -77.4100

Area codes in this area

227240301

These are the area codes that most often serve ZIP 21705 (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

21704 Frederick · 4.1 mi21709 Frederick · 4.3 mi21703 Frederick · 4.4 mi21701 Frederick · 4.8 mi21717 Buckeystown · 5 mi21702 Frederick · 5.2 mi21714 Braddock Heights · 5.3 mi21793 Walkersville · 6.6 mi

About ZIP 21705

ZIP code 21705 is assigned to Frederick, Maryland. It lies in Frederick County. Its Census area covers about 0.02 square miles of land. The closest neighboring ZIP is 21704 (Frederick), about 4.1 miles away.

Every address in 21705 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