ZIP Code 16159

16159 is one of Pennsylvania's ZIP codes, delivering to addresses in West Middlesex, Mercer County.

City: West Middlesex
County: Mercer County
State: Pennsylvania
Prefix: 161xx

Where this code sits

16159 is part of the 161xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to West Middlesex.

West Middlesex Pennsylvania ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 16159 delivers to without sharing its boundary.

ZIP codes nearest 16159

The ZIP codes whose reference points sit closest to 16159.
ZIP code	Distance	Delivers to
ZIP code 16161	3.0 mi	Wheatland, PA
ZIP code 16121	3.3 mi	Farrell, PA
ZIP code 16148	4.0 mi	Hermitage, PA
ZIP code 16146	4.7 mi	Sharon, PA
ZIP code 44438	5.5 mi	Masury, OH
ZIP code 16143	5.6 mi	Pulaski, PA
ZIP code 16140	6.0 mi	New Bedford, PA
ZIP code 44425	6.5 mi	Hubbard, OH

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 16159, plotted from its record coordinates.

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

Scope ZIP code 16159. 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.