ZIP Code 11778

11778 is one of New York's ZIP codes, delivering to addresses in Rocky Point, Suffolk County.

City: Rocky Point
County: Suffolk County
State: New York
Prefix: 117xx

Where this code sits

11778 is part of the 117xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Rocky Point.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 11778 delivers to without sharing its boundary.

ZIP codes nearest 11778

The ZIP codes whose reference points sit closest to 11778.
ZIP code	Distance	Delivers to
ZIP code 11789	2.1 mi	Sound Beach, NY
ZIP code 11786	2.2 mi	Shoreham, NY
ZIP code 11764	2.9 mi	Miller Place, NY
ZIP code 11961	4.1 mi	Ridge, NY
ZIP code 11766	4.3 mi	Mount Sinai, NY
ZIP code 11953	5.0 mi	Middle Island, NY
ZIP code 11792	5.3 mi	Wading River, NY
ZIP code 11727	5.8 mi	Coram, 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 11778, plotted from its record coordinates.

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

Scope ZIP code 11778. 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.