ZIP Code 12056

12056 is one of New York's ZIP codes, delivering to addresses in Duanesburg, Schenectady County.

City: Duanesburg
County: Schenectady County
State: New York
Prefix: 120xx

Where this code sits

12056 is part of the 120xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Duanesburg.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 12056 delivers to without sharing its boundary.

ZIP codes nearest 12056

The ZIP codes whose reference points sit closest to 12056.
ZIP code	Distance	Delivers to
ZIP code 12325	4.5 mi	Schenectady, NY
ZIP code 12306	5.4 mi	Schenectady, NY
ZIP code 12053	5.5 mi	Delanson, NY
ZIP code 12009	5.5 mi	Altamont, NY
ZIP code 12141	5.8 mi	Quaker Street, NY
ZIP code 12137	5.8 mi	Pattersonville, NY
ZIP code 12303	7.1 mi	Schenectady, NY
ZIP code 12150	7.4 mi	Rotterdam Junction, 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 12056, plotted from its record coordinates.

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

Scope ZIP code 12056. 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.