ZIP Code 11730

11730 is one of New York's ZIP codes, delivering to addresses in East Islip, Suffolk County.

City: East Islip
County: Suffolk County
State: New York
Prefix: 117xx

Where this code sits

11730 is part of the 117xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to East Islip.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 11730 delivers to without sharing its boundary.

ZIP codes nearest 11730

The ZIP codes whose reference points sit closest to 11730.
ZIP code	Distance	Delivers to
ZIP code 11739	1.0 mi	Great River, NY
ZIP code 11752	1.8 mi	Islip Terrace, NY
ZIP code 11751	2.2 mi	Islip, NY
ZIP code 11769	2.7 mi	Oakdale, NY
ZIP code 11706	3.6 mi	Bay Shore, NY
ZIP code 11722	4.1 mi	Central Islip, NY
ZIP code 11796	4.2 mi	West Sayville, NY
ZIP code 11716	4.3 mi	Bohemia, 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 11730, plotted from its record coordinates.

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

Scope ZIP code 11730. 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.