ZIP Code 21531

21531 is one of Maryland's ZIP codes, delivering to addresses in Friendsville, Garrett County.

City: Friendsville
County: Garrett County
State: Maryland
Prefix: 215xx

Where this code sits

21531 is part of the 215xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Friendsville.

Friendsville Maryland ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 21531 delivers to without sharing its boundary.

ZIP codes nearest 21531

The ZIP codes whose reference points sit closest to 21531.
ZIP code	Distance	Delivers to
ZIP code 21520	6.4 mi	Accident, MD
ZIP code 15459	6.8 mi	Markleysburg, PA
ZIP code 15411	6.9 mi	Addison, PA
ZIP code 21541	7.3 mi	Mc Henry, MD
ZIP code 15440	9.4 mi	Gibbon Glade, PA
ZIP code 26525	10 mi	Bruceton Mills, WV
ZIP code 15424	11 mi	Confluence, PA
ZIP code 21522	12 mi	Bittinger, 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 21531, plotted from its record coordinates.

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

Scope ZIP code 21531. 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.