Find the last 4 digits (ZIP+4) for an address in 20842

ZIP 20842, Dickerson, MD is filled in. Just type the street address.

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ZIP Code 20842 – Dickerson, MD

Dickerson, Maryland · Montgomery County · Eastern time

ZIP code20842
CityDickerson
StateMaryland
CountyMontgomery CountyFrederick County
Population2,369
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area55.65 sq mi
Center (lat, long)39.1999, -77.4153

Area codes in this area

227240301

These are the area codes that most often serve ZIP 20842 (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

20839 Beallsville · 1.5 mi20838 Barnesville · 2.9 mi20841 Boyds · 5.1 mi20837 Poolesville · 5.8 mi21790 Tuscarora · 6.4 mi20176 Leesburg · 6.5 mi21710 Adamstown · 7.5 mi20874 Germantown · 7.6 mi

About ZIP 20842

ZIP code 20842 is assigned to Dickerson, Maryland. It crosses 2 counties; most of its land is in Montgomery County. Its Census area covers about 55.65 square miles of land. The closest neighboring ZIP is 20839 (Beallsville), about 1.5 miles away.

Every address in 20842 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