ZIP Code 18966

18966 is one of Pennsylvania's ZIP codes, delivering to addresses in Southampton, Bucks County.

City: Southampton
County: Bucks County
State: Pennsylvania
Prefix: 189xx

Where this code sits

18966 is part of the 189xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Southampton.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 18966 delivers to without sharing its boundary.

ZIP codes nearest 18966

The ZIP codes whose reference points sit closest to 18966.
ZIP code	Distance	Delivers to
ZIP code 18954	2.1 mi	Richboro, PA
ZIP code 19053	2.4 mi	Feasterville Trevose, PA
ZIP code 19048	4.5 mi	Langhorne, PA
ZIP code 19049	4.5 mi	Langhorne, PA
ZIP code 18974	4.6 mi	Warminster, PA
ZIP code 19009	4.6 mi	Bryn Athyn, PA
ZIP code 19116	4.9 mi	Philadelphia, PA
ZIP code 19006	4.9 mi	Huntingdon Valley, 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 18966, plotted from its record coordinates.

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

Scope ZIP code 18966. 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.