ZIP Code 13664

13664 is one of New York's ZIP codes, delivering to addresses in Morristown, St. Lawrence County.

City: Morristown
County: St. Lawrence County
State: New York
Prefix: 136xx

Where this code sits

13664 is part of the 136xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Morristown.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 13664 delivers to without sharing its boundary.

ZIP codes nearest 13664

The ZIP codes whose reference points sit closest to 13664.
ZIP code	Distance	Delivers to
ZIP code 13614	2.6 mi	Brier Hill, NY
ZIP code 13646	9.4 mi	Hammond, NY
ZIP code 13633	10 mi	De Peyster, NY
ZIP code 13669	11 mi	Ogdensburg, NY
ZIP code 13654	11 mi	Heuvelton, NY
ZIP code 13623	11 mi	Chippewa Bay, NY
ZIP code 13680	16 mi	Rensselaer Falls, NY
ZIP code 13681	17 mi	Richville, 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 13664, plotted from its record coordinates.

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

Scope ZIP code 13664. 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.