ZIP Code 16346

16346 is one of Pennsylvania's ZIP codes, delivering to addresses in Seneca, Venango County.

City: Seneca
County: Venango County
State: Pennsylvania
Prefix: 163xx

Where this code sits

16346 is part of the 163xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Seneca.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 16346 delivers to without sharing its boundary.

ZIP codes nearest 16346

The ZIP codes whose reference points sit closest to 16346.
ZIP code	Distance	Delivers to
ZIP code 16301	4.1 mi	Oil City, PA
ZIP code 16319	4.4 mi	Cranberry, PA
ZIP code 16343	4.6 mi	Reno, PA
ZIP code 16344	6.8 mi	Rouseville, PA
ZIP code 16374	7.0 mi	Kennerdell, PA
ZIP code 16331	8.0 mi	Kossuth, PA
ZIP code 16323	8.3 mi	Franklin, PA
ZIP code 16364	8.9 mi	Venus, 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 16346, plotted from its record coordinates.

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

Scope ZIP code 16346. 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.