ZIP Code 13643

13643 is one of New York's ZIP codes, delivering to addresses in Great Bend, Jefferson County.

City: Great Bend
County: Jefferson County
State: New York
Prefix: 136xx

Where this code sits

13643 is part of the 136xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Great Bend.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 13643 delivers to without sharing its boundary.

ZIP codes nearest 13643

The ZIP codes whose reference points sit closest to 13643.
ZIP code	Distance	Delivers to
ZIP code 13628	1.7 mi	Deferiet, NY
ZIP code 13602	1.8 mi	Fort Drum, NY
ZIP code 13638	1.9 mi	Felts Mills, NY
ZIP code 13612	4.4 mi	Black River, NY
ZIP code 13637	6.4 mi	Evans Mills, NY
ZIP code 13616	6.5 mi	Calcium, NY
ZIP code 13619	7.0 mi	Carthage, NY
ZIP code 13673	8.6 mi	Philadelphia, 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 13643, plotted from its record coordinates.

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

Scope ZIP code 13643. 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.