ZIP Code 11717

11717 is one of New York's ZIP codes, delivering to addresses in Brentwood, Suffolk County.

City: Brentwood
County: Suffolk County
State: New York
Prefix: 117xx

Where this code sits

11717 is part of the 117xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Brentwood.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 11717 delivers to without sharing its boundary.

ZIP codes nearest 11717

The ZIP codes whose reference points sit closest to 11717.
ZIP code	Distance	Delivers to
ZIP code 11722	2.9 mi	Central Islip, NY
ZIP code 11751	3.5 mi	Islip, NY
ZIP code 11718	3.7 mi	Brightwaters, NY
ZIP code 11752	4.0 mi	Islip Terrace, NY
ZIP code 11788	4.1 mi	Hauppauge, NY
ZIP code 11729	4.2 mi	Deer Park, NY
ZIP code 11749	4.5 mi	Islandia, NY
ZIP code 11725	4.6 mi	Commack, 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 11717, plotted from its record coordinates.

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

Scope ZIP code 11717. 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.