Find the last 4 digits (ZIP+4) for an address in 20854

ZIP 20854, Potomac, MD is filled in. Just type the street address.

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ZIP Code 20854 – Potomac, MD

Potomac, Maryland · Montgomery County · Eastern time

ZIP code20854
CityPotomac
StateMaryland
CountyMontgomery County
Population50,498
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area33.85 sq mi
Center (lat, long)39.0328, -77.2208

Area codes in this area

227240301

These are the area codes that most often serve ZIP 20854 (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

20817 Bethesda · 4.4 mi20850 Rockville · 4.5 mi22066 Great Falls · 4.6 mi22067 Greenway · 4.8 mi20847 Rockville · 5.1 mi20849 Rockville · 5.1 mi20857 Rockville · 5.1 mi20883 Gaithersburg · 5.1 mi

About ZIP 20854

ZIP code 20854 is assigned to Potomac, Maryland. It lies in Montgomery County. Its Census area covers about 33.85 square miles of land. The closest neighboring ZIP is 20817 (Bethesda), about 4.4 miles away.

Every address in 20854 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