ZIP Code 12870

12870 is one of New York's ZIP codes, delivering to addresses in Schroon Lake, Essex County.

City: Schroon Lake
County: Essex County
State: New York
Prefix: 128xx

Where this code sits

12870 is part of the 128xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Schroon Lake.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 12870 delivers to without sharing its boundary.

ZIP codes nearest 12870

The ZIP codes whose reference points sit closest to 12870.
ZIP code	Distance	Delivers to
ZIP code 12872	3.0 mi	Severance, NY
ZIP code 12858	7.0 mi	Paradox, NY
ZIP code 12860	8.0 mi	Pottersville, NY
ZIP code 12808	8.6 mi	Adirondack, NY
ZIP code 12857	9.3 mi	Olmstedville, NY
ZIP code 12815	10 mi	Brant Lake, NY
ZIP code 12855	10 mi	North Hudson, NY
ZIP code 12851	12 mi	Minerva, 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 12870, plotted from its record coordinates.

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

Scope ZIP code 12870. 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.