ZIP Code 17018

17018 is one of Pennsylvania's ZIP codes, delivering to addresses in Dauphin, Dauphin County.

City: Dauphin
County: Dauphin County
State: Pennsylvania
Prefix: 170xx

Where this code sits

17018 is part of the 170xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Dauphin.

Dauphin Pennsylvania ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 17018 delivers to without sharing its boundary.

ZIP codes nearest 17018

The ZIP codes whose reference points sit closest to 17018.
ZIP code	Distance	Delivers to
ZIP code 17053	4.1 mi	Marysville, PA
ZIP code 17069	5.3 mi	New Buffalo, PA
ZIP code 17093	5.3 mi	Summerdale, PA
ZIP code 17110	6.1 mi	Harrisburg, PA
ZIP code 17025	6.4 mi	Enola, PA
ZIP code 17020	6.5 mi	Duncannon, PA
ZIP code 17121	6.5 mi	Harrisburg, PA
ZIP code 17032	6.6 mi	Halifax, 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 17018, plotted from its record coordinates.

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

Scope ZIP code 17018. 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.