ZIP Code 17343

17343 is one of Pennsylvania's ZIP codes, delivering to addresses in Mc Knightstown, Adams County.

City: Mc Knightstown
County: Adams County
State: Pennsylvania
Prefix: 173xx

Where this code sits

17343 is part of the 173xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Mc Knightstown.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 17343 delivers to without sharing its boundary.

ZIP codes nearest 17343

The ZIP codes whose reference points sit closest to 17343.
ZIP code	Distance	Delivers to
ZIP code 17310	2.1 mi	Cashtown, PA
ZIP code 17353	2.8 mi	Orrtanna, PA
ZIP code 17303	4.1 mi	Arendtsville, PA
ZIP code 17307	4.6 mi	Biglerville, PA
ZIP code 17325	6.2 mi	Gettysburg, PA
ZIP code 17320	6.3 mi	Fairfield, PA
ZIP code 17375	6.4 mi	Peach Glen, PA
ZIP code 17261	8.6 mi	South Mountain, 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 17343, plotted from its record coordinates.

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

Scope ZIP code 17343. 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.