ZIP Code 12139

12139 is one of New York's ZIP codes, delivering to addresses in Piseco, Hamilton County.

City: Piseco
County: Hamilton County
State: New York
Prefix: 121xx

Where this code sits

12139 is part of the 121xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Piseco.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 12139 delivers to without sharing its boundary.

ZIP codes nearest 12139

The ZIP codes whose reference points sit closest to 12139.
ZIP code	Distance	Delivers to
ZIP code 12164	8.9 mi	Speculator, NY
ZIP code 13353	11 mi	Hoffmeister, NY
ZIP code 12190	12 mi	Wells, NY
ZIP code 12108	16 mi	Lake Pleasant, NY
ZIP code 12032	18 mi	Caroga Lake, NY
ZIP code 12134	20 mi	Northville, NY
ZIP code 13470	20 mi	Stratford, NY
ZIP code 12864	22 mi	Sabael, 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 12139, plotted from its record coordinates.

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

Scope ZIP code 12139. 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.