ZIP Code 17810

17810 is one of Pennsylvania's ZIP codes, delivering to addresses in Allenwood, Union County.

City: Allenwood
County: Union County
State: Pennsylvania
Prefix: 178xx

Where this code sits

17810 is part of the 178xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Allenwood.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 17810 delivers to without sharing its boundary.

ZIP codes nearest 17810

The ZIP codes whose reference points sit closest to 17810.
ZIP code	Distance	Delivers to
ZIP code 17730	5.1 mi	Dewart, PA
ZIP code 17752	5.9 mi	Montgomery, PA
ZIP code 17887	6.2 mi	White Deer, PA
ZIP code 17856	6.2 mi	New Columbia, PA
ZIP code 17702	6.4 mi	Williamsport, PA
ZIP code 17777	6.4 mi	Watsontown, PA
ZIP code 17701	8.1 mi	Williamsport, PA
ZIP code 17703	8.1 mi	Williamsport, 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 17810, plotted from its record coordinates.

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

Scope ZIP code 17810. 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.