ZIP Code 18321

18321 is one of Pennsylvania's ZIP codes, delivering to addresses in Bartonsville, Monroe County.

City: Bartonsville
County: Monroe County
State: Pennsylvania
Prefix: 183xx

Where this code sits

18321 is part of the 183xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Bartonsville.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 18321 delivers to without sharing its boundary.

ZIP codes nearest 18321

The ZIP codes whose reference points sit closest to 18321.
ZIP code	Distance	Delivers to
ZIP code 18348	1.9 mi	Pocono Lake Preserve, PA
ZIP code 18352	2.2 mi	Reeders, PA
ZIP code 18360	2.9 mi	Stroudsburg, PA
ZIP code 18372	3.1 mi	Tannersville, PA
ZIP code 18355	4.9 mi	Scotrun, PA
ZIP code 18320	5.4 mi	Analomink, PA
ZIP code 18335	5.5 mi	Marshalls Creek, PA
ZIP code 18332	5.7 mi	Henryville, 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 18321, plotted from its record coordinates.

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

Scope ZIP code 18321. 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.