In which county is ZIP code 13640 located?

ZIP 13640 is listed under Jefferson, NY.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 13640: Wellesley Island, NY

ZIP: 13640

County: Jefferson

Coordinates: 44.32130, -76.01720

ZIP Type: Standard

Time Zone: Eastern Time (ET)

Explore detailed information for ZIP code 13640 in Wellesley Island, NY. We include verified county details for Jefferson plus key geographic references used for mapping and logistics.

Primary City	Wellesley Island
ZIP Code	13640
County	Jefferson
State	NY
Latitude / Longitude	44.32130, -76.01720
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 13640 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 13640 are listed as 44.32130 / -76.01720, useful for GPS and service checks in and around Wellesley Island, NY.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 13640 for mail delivery and general location reference in Jefferson, NY.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Wellesley Island within NY.

Frequently Asked Questions

What is the primary city for ZIP code 13640?

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

In which county is 13640 located?

ZIP code 13640 is situated within Jefferson, NY.

What are the coordinates for 13640?

The approximate center point is 44.32130 (Latitude) and -76.01720 (Longitude).

Is ZIP code 13640 active?

This page lists ZIP 13640 as Listed based on the latest refresh date shown above.

Does ZIP 13640 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