Find the last 4 digits (ZIP+4) for an address in 20837

ZIP 20837, Poolesville, MD is filled in. Just type the street address.

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ZIP Code 20837 – Poolesville, MD

Poolesville, Maryland · Montgomery County · Eastern time

ZIP code20837
CityPoolesville
StateMaryland
CountyMontgomery County
Population6,699
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area40.28 sq mi
Center (lat, long)39.1165, -77.4071

Area codes in this area

227240301

These are the area codes that most often serve ZIP 20837 (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

20165 Sterling · 4.1 mi20839 Beallsville · 4.7 mi20874 Germantown · 5.8 mi20842 Dickerson · 5.8 mi20147 Ashburn · 6.4 mi20841 Boyds · 6.4 mi20149 Ashburn · 6.6 mi20164 Sterling · 7.3 mi

About ZIP 20837

ZIP code 20837 is assigned to Poolesville, Maryland. It lies in Montgomery County. Its Census area covers about 40.28 square miles of land. The closest neighboring ZIP is 20165 (Sterling), about 4.1 miles away.

Every address in 20837 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