ZIP Code 12140

12140 is one of New York's ZIP codes, delivering to addresses in Poestenkill, Rensselaer County.

City: Poestenkill
County: Rensselaer County
State: New York
Prefix: 121xx

Where this code sits

12140 is part of the 121xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Poestenkill.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 12140 delivers to without sharing its boundary.

ZIP codes nearest 12140

The ZIP codes whose reference points sit closest to 12140.
ZIP code	Distance	Delivers to
ZIP code 12198	3.8 mi	Wynantskill, NY
ZIP code 12018	3.9 mi	Averill Park, NY
ZIP code 12196	4.5 mi	West Sand Lake, NY
ZIP code 12153	4.9 mi	Sand Lake, NY
ZIP code 12180	5.9 mi	Troy, NY
ZIP code 12181	6.5 mi	Troy, NY
ZIP code 12052	6.9 mi	Cropseyville, NY
ZIP code 12183	7.7 mi	Troy, 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 12140, plotted from its record coordinates.

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

Scope ZIP code 12140. 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.