ZIP Code 16311

16311 is one of Pennsylvania's ZIP codes, delivering to addresses in Carlton, Mercer County.

City: Carlton
County: Mercer County
State: Pennsylvania
Prefix: 163xx

Where this code sits

16311 is part of the 163xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Carlton.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 16311 delivers to without sharing its boundary.

ZIP codes nearest 16311

The ZIP codes whose reference points sit closest to 16311.
ZIP code	Distance	Delivers to
ZIP code 16314	3.3 mi	Cochranton, PA
ZIP code 16362	4.1 mi	Utica, PA
ZIP code 16317	7.6 mi	Cooperstown, PA
ZIP code 16342	9.6 mi	Polk, PA
ZIP code 16151	9.9 mi	Sheakleyville, PA
ZIP code 16145	10 mi	Sandy Lake, PA
ZIP code 16153	10 mi	Stoneboro, PA
ZIP code 16114	10 mi	Clarks Mills, 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 16311, plotted from its record coordinates.

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

Scope ZIP code 16311. 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.