ZIP Code 18977

18977 is one of Pennsylvania's ZIP codes, delivering to addresses in Washington Crossing, Bucks County.

City: Washington Crossing
County: Bucks County
State: Pennsylvania
Prefix: 189xx

Where this code sits

18977 is part of the 189xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Washington Crossing.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 18977 delivers to without sharing its boundary.

ZIP codes nearest 18977

The ZIP codes whose reference points sit closest to 18977.
ZIP code	Distance	Delivers to
ZIP code 08560	1.7 mi	Titusville, NJ
ZIP code 08628	3.5 mi	Trenton, NJ
ZIP code 18940	4.4 mi	Newtown, PA
ZIP code 08534	5.5 mi	Pennington, NJ
ZIP code 19067	5.9 mi	Morrisville, PA
ZIP code 08618	6.0 mi	Trenton, NJ
ZIP code 08638	6.5 mi	Trenton, NJ
ZIP code 08530	6.6 mi	Lambertville, NJ

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 18977, plotted from its record coordinates.

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

Scope ZIP code 18977. 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.