Find the last 4 digits (ZIP+4) for an address in 21710

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ZIP Code 21710 – Adamstown, MD

Adamstown, Maryland · Frederick County · Eastern time

ZIP code21710
CityAdamstown
StateMaryland
CountyFrederick County
Population4,661
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area29.38 sq mi
Center (lat, long)39.3079, -77.4321

Area codes in this area

227240301

These are the area codes that most often serve ZIP 21710 (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

21717 Buckeystown · 2.1 mi21704 Frederick · 4.4 mi21703 Frederick · 4.6 mi21790 Tuscarora · 4.9 mi21777 Point Of Rocks · 5.5 mi21754 Ijamsville · 6.4 mi20838 Barnesville · 6.7 mi21705 Frederick · 7.1 mi

About ZIP 21710

ZIP code 21710 is assigned to Adamstown, Maryland. It lies in Frederick County. Its Census area covers about 29.38 square miles of land. The closest neighboring ZIP is 21717 (Buckeystown), about 2.1 miles away.

Every address in 21710 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