Find the last 4 digits (ZIP+4) for an address in 20871

ZIP 20871, Clarksburg, MD is filled in. Just type the street address.

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ZIP Code 20871 – Clarksburg, MD

Clarksburg, Maryland · Montgomery County · Eastern time

ZIP code20871
CityClarksburg
StateMaryland
CountyMontgomery CountyFrederick County
Population30,182
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area22.88 sq mi
Center (lat, long)39.2589, -77.2818

Area codes in this area

227240301

These are the area codes that most often serve ZIP 20871 (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

20876 Germantown · 4.4 mi20872 Damascus · 4.9 mi20838 Barnesville · 5.3 mi21754 Ijamsville · 5.4 mi20841 Boyds · 5.7 mi20886 Montgomery Village · 6.4 mi21770 Monrovia · 6.4 mi20885 Gaithersburg · 6.5 mi

About ZIP 20871

ZIP code 20871 is assigned to Clarksburg, Maryland. It crosses 2 counties; most of its land is in Montgomery County. Its Census area covers about 22.88 square miles of land. The closest neighboring ZIP is 20876 (Germantown), about 4.4 miles away.

Every address in 20871 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