ZIP Code 15056

15056 is one of Pennsylvania's ZIP codes, delivering to addresses in Leetsdale, Allegheny County.

City: Leetsdale
County: Allegheny County
State: Pennsylvania
Prefix: 150xx

Where this code sits

15056 is part of the 150xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Leetsdale.

Leetsdale Pennsylvania ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 15056 delivers to without sharing its boundary.

ZIP codes nearest 15056

The ZIP codes whose reference points sit closest to 15056.
ZIP code	Distance	Delivers to
ZIP code 15046	1.2 mi	Crescent, PA
ZIP code 15081	1.6 mi	South Heights, PA
ZIP code 15003	2.4 mi	Ambridge, PA
ZIP code 15143	2.8 mi	Sewickley, PA
ZIP code 15108	4.6 mi	Coraopolis, PA
ZIP code 15231	5.2 mi	Pittsburgh, PA
ZIP code 15005	5.2 mi	Baden, PA
ZIP code 15001	6.0 mi	Aliquippa, 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 15056, plotted from its record coordinates.

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

Scope ZIP code 15056. 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.