In which county is ZIP code 11566 located?

ZIP 11566 is listed under Nassau, NY.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 11566: Merrick, NY

ZIP: 11566

County: Nassau

Coordinates: 40.66850, -73.55360

ZIP Type: Standard

Time Zone: Eastern Time (ET)

This profile provides an in-depth look at ZIP code 11566, serving Merrick in NY. It lies in Nassau and supports delivery, planning, and address verification.

Primary City	Merrick
ZIP Code	11566
County	Nassau
State	NY
Latitude / Longitude	40.66850, -73.55360
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 11566 (not an exact boundary).

Geographic & Administrative Context

The geographic center of ZIP code 11566 is approximately 40.66850 (latitude) and -73.55360 (longitude). This location sits within Nassau, contributing to regional planning across NY.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 11566 for mail delivery and general location reference in Nassau, NY.

Coverage may include nearby neighborhoods and adjacent unincorporated areas commonly associated with Merrick.

Related ZIP Codes (Nearby)

Explore other postal codes near Merrick within NY.

Frequently Asked Questions

What is the primary city for ZIP code 11566?

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

In which county is 11566 located?

ZIP code 11566 is situated within Nassau, NY.

What are the coordinates for 11566?

The approximate center point is 40.66850 (Latitude) and -73.55360 (Longitude).

Is ZIP code 11566 active?

This page lists ZIP 11566 as Listed based on the latest refresh date shown above.

Does ZIP 11566 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