ZIP Code 15531

15531 is one of Pennsylvania's ZIP codes, delivering to addresses in Boswell, Somerset County.

City: Boswell
County: Somerset County
State: Pennsylvania
Prefix: 155xx

Where this code sits

15531 is part of the 155xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Boswell.

Boswell Pennsylvania ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 15531 delivers to without sharing its boundary.

ZIP codes nearest 15531

The ZIP codes whose reference points sit closest to 15531.
ZIP code	Distance	Delivers to
ZIP code 15547	2.6 mi	Jennerstown, PA
ZIP code 15937	2.8 mi	Jerome, PA
ZIP code 15546	3.4 mi	Jenners, PA
ZIP code 15544	4.8 mi	Gray, PA
ZIP code 15935	5.3 mi	Hollsopple, PA
ZIP code 15928	5.7 mi	Davidsville, PA
ZIP code 15520	5.9 mi	Acosta, PA
ZIP code 15936	7.1 mi	Hooversville, PA

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 15531, plotted from its record coordinates.

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

Scope ZIP code 15531. 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.