ZIP Code 12857

12857 is one of New York's ZIP codes, delivering to addresses in Olmstedville, Essex County.

City: Olmstedville
County: Essex County
State: New York
Prefix: 128xx

Where this code sits

12857 is part of the 128xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Olmstedville.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 12857 delivers to without sharing its boundary.

ZIP codes nearest 12857

The ZIP codes whose reference points sit closest to 12857.
ZIP code	Distance	Delivers to
ZIP code 12851	2.5 mi	Minerva, NY
ZIP code 12853	6.2 mi	North Creek, NY
ZIP code 12860	6.6 mi	Pottersville, NY
ZIP code 12862	8.4 mi	Riparius, NY
ZIP code 12856	8.6 mi	North River, NY
ZIP code 12808	8.7 mi	Adirondack, NY
ZIP code 12870	9.3 mi	Schroon Lake, NY
ZIP code 12886	10 mi	Wevertown, 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 12857, plotted from its record coordinates.

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

Scope ZIP code 12857. 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.