ZIP Code 20871

20871 is one of Maryland's ZIP codes, delivering to addresses in Clarksburg, Montgomery County.

City: Clarksburg
County: Montgomery County
State: Maryland
Prefix: 208xx

Where this code sits

20871 is part of the 208xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Clarksburg.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 20871 delivers to without sharing its boundary.

ZIP codes nearest 20871

The ZIP codes whose reference points sit closest to 20871.
ZIP code	Distance	Delivers to
ZIP code 20841	2.8 mi	Boyds, MD
ZIP code 20876	4.2 mi	Germantown, MD
ZIP code 20872	4.4 mi	Damascus, MD
ZIP code 20838	5.3 mi	Barnesville, MD
ZIP code 20885	5.4 mi	Gaithersburg, MD
ZIP code 21754	6.1 mi	Ijamsville, MD
ZIP code 20886	6.6 mi	Montgomery Village, MD
ZIP code 20879	6.8 mi	Gaithersburg, MD

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.

Each point is the reference point for 20871, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope ZIP code 20871. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.