ZIP Code 15684

15684 is one of Pennsylvania's ZIP codes, delivering to addresses in Slickville, Westmoreland County.

City: Slickville
County: Westmoreland County
State: Pennsylvania
Prefix: 156xx

Where this code sits

15684 is part of the 156xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Slickville.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 15684 delivers to without sharing its boundary.

ZIP codes nearest 15684

The ZIP codes whose reference points sit closest to 15684.
ZIP code	Distance	Delivers to
ZIP code 15680	3.7 mi	Salina, PA
ZIP code 15618	4.1 mi	Avonmore, PA
ZIP code 15626	5.1 mi	Delmont, PA
ZIP code 15632	6.1 mi	Export, PA
ZIP code 15670	6.4 mi	New Alexandria, PA
ZIP code 15613	7.3 mi	Apollo, PA
ZIP code 15624	7.4 mi	Crabtree, PA
ZIP code 15633	7.7 mi	Forbes Road, 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 15684, plotted from its record coordinates.

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

Scope ZIP code 15684. 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.