ZIP Code 17730

17730 is one of Pennsylvania's ZIP codes, delivering to addresses in Dewart, Northumberland County.

City: Dewart
County: Northumberland County
State: Pennsylvania
Prefix: 177xx

Where this code sits

17730 is part of the 177xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Dewart.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 17730 delivers to without sharing its boundary.

ZIP codes nearest 17730

The ZIP codes whose reference points sit closest to 17730.
ZIP code	Distance	Delivers to
ZIP code 17777	1.3 mi	Watsontown, PA
ZIP code 17887	2.3 mi	White Deer, PA
ZIP code 17749	4.0 mi	Mc Ewensville, PA
ZIP code 17856	4.0 mi	New Columbia, PA
ZIP code 17752	4.8 mi	Montgomery, PA
ZIP code 17810	5.1 mi	Allenwood, PA
ZIP code 17886	6.3 mi	West Milton, PA
ZIP code 17847	6.7 mi	Milton, 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 17730, plotted from its record coordinates.

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

Scope ZIP code 17730. 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.