ZIP Code 15143

15143 is one of Pennsylvania's ZIP codes, delivering to addresses in Sewickley, Allegheny County.

City: Sewickley
County: Allegheny County
State: Pennsylvania
Prefix: 151xx

Where this code sits

15143 is part of the 151xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Sewickley.

Sewickley Pennsylvania ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 15143 delivers to without sharing its boundary.

ZIP codes nearest 15143

The ZIP codes whose reference points sit closest to 15143.
ZIP code	Distance	Delivers to
ZIP code 15056	2.8 mi	Leetsdale, PA
ZIP code 15046	3.7 mi	Crescent, PA
ZIP code 15003	4.1 mi	Ambridge, PA
ZIP code 15225	4.2 mi	Pittsburgh, PA
ZIP code 15081	4.4 mi	South Heights, PA
ZIP code 15108	4.5 mi	Coraopolis, PA
ZIP code 15127	5.3 mi	Ingomar, PA
ZIP code 15237	5.8 mi	Pittsburgh, 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 15143, plotted from its record coordinates.

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

Scope ZIP code 15143. 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.