ZIP Code 17057

17057 is one of Pennsylvania's ZIP codes, delivering to addresses in Middletown, Dauphin County.

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

Where this code sits

17057 is part of the 170xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Middletown.

Middletown Pennsylvania ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 17057 delivers to without sharing its boundary.

ZIP codes nearest 17057

The ZIP codes whose reference points sit closest to 17057.
ZIP code	Distance	Delivers to
ZIP code 17034	2.8 mi	Highspire, PA
ZIP code 17319	5.0 mi	Etters, PA
ZIP code 17036	5.3 mi	Hummelstown, PA
ZIP code 17033	5.8 mi	Hershey, PA
ZIP code 17111	5.9 mi	Harrisburg, PA
ZIP code 17370	6.1 mi	York Haven, PA
ZIP code 17113	6.2 mi	Harrisburg, PA
ZIP code 17070	7.2 mi	New Cumberland, 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 17057, plotted from its record coordinates.

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

Scope ZIP code 17057. 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.