ZIP Code 13780

13780 is one of New York's ZIP codes, delivering to addresses in Guilford, Chenango County.

City: Guilford
County: Chenango County
State: New York
Prefix: 137xx

Where this code sits

13780 is part of the 137xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Guilford.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 13780 delivers to without sharing its boundary.

607 Area code 607

ZIP codes nearest 13780

The ZIP codes whose reference points sit closest to 13780.
ZIP code	Distance	Delivers to
ZIP code 13809	4.4 mi	Mount Upton, NY
ZIP code 13830	4.4 mi	Oxford, NY
ZIP code 13733	7.9 mi	Bainbridge, NY
ZIP code 13815	8.2 mi	Norwich, NY
ZIP code 13776	8.6 mi	Gilbertsville, NY
ZIP code 13843	8.6 mi	South New Berlin, NY
ZIP code 13838	9.5 mi	Sidney, NY
ZIP code 13849	10 mi	Unadilla, 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 13780, plotted from its record coordinates.

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

Scope ZIP code 13780. 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.