ZIP Code 15078

15078 is one of Pennsylvania's ZIP codes, delivering to addresses in Slovan, Washington County.

City: Slovan
County: Washington County
State: Pennsylvania
Prefix: 150xx

Where this code sits

15078 is part of the 150xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Slovan.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 15078 delivers to without sharing its boundary.

ZIP codes nearest 15078

The ZIP codes whose reference points sit closest to 15078.
ZIP code	Distance	Delivers to
ZIP code 15054	1.1 mi	Langeloth, PA
ZIP code 15004	1.2 mi	Atlasburg, PA
ZIP code 15021	1.9 mi	Burgettstown, PA
ZIP code 15053	2.1 mi	Joffre, PA
ZIP code 15019	3.5 mi	Bulger, PA
ZIP code 15060	5.1 mi	Midway, PA
ZIP code 15340	6.4 mi	Hickory, PA
ZIP code 15312	6.9 mi	Avella, 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 15078, plotted from its record coordinates.

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

Scope ZIP code 15078. 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.