ZIP Code 13864

13864 is one of New York's ZIP codes, delivering to addresses in Willseyville, Tioga County.

City: Willseyville
County: Tioga County
State: New York
Prefix: 138xx

Where this code sits

13864 is part of the 138xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Willseyville.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 13864 delivers to without sharing its boundary.

607 Area code 607

ZIP codes nearest 13864

The ZIP codes whose reference points sit closest to 13864.
ZIP code	Distance	Delivers to
ZIP code 14817	5.2 mi	Brooktondale, NY
ZIP code 14883	6.4 mi	Spencer, NY
ZIP code 14881	7.0 mi	Slaterville Springs, NY
ZIP code 13743	7.3 mi	Candor, NY
ZIP code 13736	10 mi	Berkshire, NY
ZIP code 14852	11 mi	Ithaca, NY
ZIP code 14850	11 mi	Ithaca, NY
ZIP code 14853	11 mi	Ithaca, 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 13864, plotted from its record coordinates.

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

Scope ZIP code 13864. 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.