ZIP Code 13803

13803 is one of New York's ZIP codes, delivering to addresses in Marathon, Cortland County.

City: Marathon
County: Cortland County
State: New York
Prefix: 138xx

Where this code sits

13803 is part of the 138xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Marathon.

Marathon New York ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 13803 delivers to without sharing its boundary.

607 Area code 607

ZIP codes nearest 13803

The ZIP codes whose reference points sit closest to 13803.
ZIP code	Distance	Delivers to
ZIP code 13794	3.7 mi	Killawog, NY
ZIP code 13863	7.0 mi	Willet, NY
ZIP code 13797	7.7 mi	Lisle, NY
ZIP code 13835	8.5 mi	Richford, NY
ZIP code 13738	9.0 mi	Blodgett Mills, NY
ZIP code 13862	9.1 mi	Whitney Point, NY
ZIP code 13040	9.1 mi	Cincinnatus, NY
ZIP code 13784	9.7 mi	Harford, 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 13803, plotted from its record coordinates.

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

Scope ZIP code 13803. 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.