ZIP Code 12742

12742 is one of New York's ZIP codes, delivering to addresses in Harris, Sullivan County.

City: Harris
County: Sullivan County
State: New York
Prefix: 127xx

Where this code sits

12742 is part of the 127xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Harris.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 12742 delivers to without sharing its boundary.

ZIP codes nearest 12742

The ZIP codes whose reference points sit closest to 12742.
ZIP code	Distance	Delivers to
ZIP code 12734	1.5 mi	Ferndale, NY
ZIP code 12747	3.1 mi	Hurleyville, NY
ZIP code 12751	3.5 mi	Kiamesha Lake, NY
ZIP code 12779	4.3 mi	South Fallsburg, NY
ZIP code 12701	4.5 mi	Monticello, NY
ZIP code 12762	4.6 mi	Mongaup Valley, NY
ZIP code 12759	5.6 mi	Loch Sheldrake, NY
ZIP code 12783	5.6 mi	Swan Lake, 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 12742, plotted from its record coordinates.

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

Scope ZIP code 12742. 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.