In which county is ZIP code 11789 located?

ZIP 11789 is listed under Suffolk, NY.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 11789: Sound Beach, NY

ZIP: 11789

County: Suffolk

Coordinates: 40.95670, -72.97420

ZIP Type: Standard

Time Zone: Eastern Time (ET)

Get a reliable snapshot of the Sound Beach, NY postal area 11789. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Sound Beach
ZIP Code	11789
County	Suffolk
State	NY
Latitude / Longitude	40.95670, -72.97420
ZIP Type	Standard
Time Zone	Eastern Time (ET)
Data Updated	2026-01-08

Maps & Useful Links

Open in Maps: Google Maps · OpenStreetMap

These links show the approximate center point for ZIP 11789 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 11789 are listed as 40.95670 / -72.97420, useful for GPS and service checks in and around Sound Beach, NY.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 11789 for mail delivery and general location reference in Suffolk, NY.

Some addresses near Sound Beach may share this ZIP due to delivery routing and local service areas.

Related ZIP Codes (Nearby)

Explore other postal codes near Sound Beach within NY.

Frequently Asked Questions

What is the primary city for ZIP code 11789?

The primary city for this ZIP code is Sound Beach, located in NY.

In which county is 11789 located?

ZIP code 11789 is situated within Suffolk, NY.

What are the coordinates for 11789?

The approximate center point is 40.95670 (Latitude) and -72.97420 (Longitude).

Is ZIP code 11789 active?

This page lists ZIP 11789 as Listed based on the latest refresh date shown above.

Does ZIP 11789 cover multiple areas?

Yes. Many ZIP codes cover multiple neighborhoods or nearby areas. For exact boundaries, use official mapping tools.

Methodology & Data Notes

How we build this page: We generate this page from a structured ZIP dataset and refresh key fields (city, county, and coordinates) during scheduled updates. Coordinates represent an approximate center point, not an official boundary map.
Sources: Public ZIP reference datasets and geographic coordinate references. If you use specific sources (e.g., USPS, Census), list them on your About/Methodology page.

Page updated: 2026-01-08