ZIP Code 18430

18430 is one of Pennsylvania's ZIP codes, delivering to addresses in Herrick Center, Susquehanna County.

City: Herrick Center
County: Susquehanna County
State: Pennsylvania
Prefix: 184xx

Where this code sits

18430 is part of the 184xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Herrick Center.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 18430 delivers to without sharing its boundary.

ZIP codes nearest 18430

The ZIP codes whose reference points sit closest to 18430.
ZIP code	Distance	Delivers to
ZIP code 18470	3.8 mi	Union Dale, PA
ZIP code 18453	4.7 mi	Pleasant Mount, PA
ZIP code 18449	5.4 mi	Orson, PA
ZIP code 18421	6.4 mi	Forest City, PA
ZIP code 18454	6.5 mi	Poyntelle, PA
ZIP code 18465	6.8 mi	Thompson, PA
ZIP code 18842	7.3 mi	South Gibson, PA
ZIP code 18439	7.5 mi	Lakewood, 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 18430, plotted from its record coordinates.

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

Scope ZIP code 18430. 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.