ZIP Code 10542

10542 is one of New York's ZIP codes, delivering to addresses in Mahopac Falls, Putnam County.

City: Mahopac Falls
County: Putnam County
State: New York
Prefix: 105xx

Where this code sits

10542 is part of the 105xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Mahopac Falls.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 10542 delivers to without sharing its boundary.

ZIP codes nearest 10542

The ZIP codes whose reference points sit closest to 10542.
ZIP code	Distance	Delivers to
ZIP code 10541	0.5 mi	Mahopac, NY
ZIP code 10505	2.2 mi	Baldwin Place, NY
ZIP code 10535	3.0 mi	Jefferson Valley, NY
ZIP code 10587	3.2 mi	Shenorock, NY
ZIP code 10540	3.3 mi	Lincolndale, NY
ZIP code 10589	4.3 mi	Somers, NY
ZIP code 10527	4.4 mi	Granite Springs, NY
ZIP code 10588	4.6 mi	Shrub Oak, 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 10542, plotted from its record coordinates.

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

Scope ZIP code 10542. 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.