Postal Code
11771
Postal Code 11771
Country United States
ISO Code US
ZIP Code 11771

Postal Information

Postal Code 11771
City Oyster Bay
County Nassau
Region New York
Country United States

Nearby Postal Codes

Distances are calculated geographically from this postal code, not from administrative boundaries.

Postal Code City Region Coordinates
11732 East Norwich New York 2.3 km
11765 Mill Neck New York 3.8 km
11773 Syosset New York 4.2 km
11791 Syosset New York 5.7 km
11709 Bayville New York 5.9 km
11724 Cold Spring Harbor New York 6.1 km
11560 Locust Valley New York 6.2 km
11797 Woodbury New York 7.1 km
11545 Glen Head New York 7.6 km
11853 Jericho New York 8.6 km
11753 Jericho New York 8.7 km
11542 Glen Cove New York 8.7 km
11743 Huntington New York 9.6 km
11803 Plainview New York 9.9 km
11548 Greenvale New York 10.0 km
11579 Sea Cliff New York 10.2 km

Postal Hierarchy

ZIP Code11771

ZIP Code (5 digits) with optional ZIP+4 extension.

About ZIP Code 11771 in Oyster Bay, New York

ZIP Code 11771 for Oyster Bay, New York is part of the United States postal code system, which uses a numeric code of 5 (or 5+4) digits (e.g. 10001). Addresses here are organised as State → County → City. Within the code structure it maps to ZIP Code 11771.

Administratively it is recorded in Nassau, New York within United States. Postal codes are assigned by delivery route rather than by administrative boundary, so a single code can cover more than one locality and a locality can fall under several codes.

No building-level records are held for this code in the imported dataset, so only the code and its location details are shown. The absence of records does not mean the zip code is unused.

Couriers, e-commerce checkout forms and address autocomplete tools all rely on the zip code to route mail and to check that a stated address matches the code. Because a zip code identifies a delivery area rather than a single building, two addresses that share the same code can still be some distance apart.

Always write United States ZIP Code in full when completing a form, including any leading zero. Enter a valid US ZIP Code, e.g. 10001 or 10001-1234. Data source: a third-party open dataset. This is a reference snapshot, not a live government feed, so confirm the code with the sender, carrier or postal authority before relying on it.

Buildings & Addresses for This Code

No building-level records were found for this postal code in the imported dataset.
Information provided on CodeReff is for reference purposes only. Always verify financial and banking details with the relevant institution before use.