ZIP Code 18821

18821 is one of Pennsylvania's ZIP codes, delivering to addresses in Great Bend, Susquehanna County.

City: Great Bend
County: Susquehanna County
State: Pennsylvania
Prefix: 188xx

Where this code sits

18821 is part of the 188xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Great Bend.

Great Bend Pennsylvania ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 18821 delivers to without sharing its boundary.

ZIP codes nearest 18821

The ZIP codes whose reference points sit closest to 18821.
ZIP code	Distance	Delivers to
ZIP code 18822	2.2 mi	Hallstead, PA
ZIP code 13749	3.9 mi	Corbettsville, NY
ZIP code 13748	6.1 mi	Conklin, NY
ZIP code 13795	7.3 mi	Kirkwood, NY
ZIP code 18834	7.4 mi	New Milford, PA
ZIP code 18827	8.2 mi	Lanesboro, PA
ZIP code 18847	8.2 mi	Susquehanna, PA
ZIP code 13865	8.9 mi	Windsor, NY

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 18821, plotted from its record coordinates.

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

Scope ZIP code 18821. 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.