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zipcodes.pro — CITY/NY/WELLESLEY-ISLAND

Wellesley Island ZIP code, New York

The ZIP code for Wellesley Island, NY is 13640, and its area code is 315.

USPS city name
1 ZIP code
Population
318
Area code
315

NANPA lists no telephone rate centre for Wellesley Island itself, so these are the area codes of the nearest one, Alexandria Bay (4.0 miles). A town on an area-code boundary can differ from its neighbour.

Wellesley Island in numbers

About 318 people live in Wellesley Island, in 156 households. The median household income is $118,026 a year, 37% above the New York median of $85,974 (US: $80,734). The median owner-occupied home is valued at $370,200 (13% below the New York median).

Population318Wellesley Island318
Households156Wellesley Island156
Median household income$118,026Wellesley Island$118,026New York$85,974US $80,734
Median home value$370,200Wellesley Island$370,200New York$423,800US $332,700

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the ZIP code addressed as Wellesley Island. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Wellesley Island

ZIP codes with the USPS city name Wellesley Island
ZIP City Type Population Median income Median home
13640 Wellesley Island , NY Standard 318 $118,026 $370,200

Map of Wellesley Island ZIP codes

13640

The ZIP codes of Wellesley Island, NY, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Wellesley Island

The nearest larger towns are Alexandria Bay (1,212 people, 3.3 mi), Clayton (1,661 people, 8.0 mi) and Redwood (371 people, 9.3 mi).

Towns near Wellesley Island
TownPopulationDistance
Calcium 2,935 21.3 mi
Fort Drum 16,065 22.3 mi
Watertown 24,375 25.1 mi
Gouverneur 3,615 25.9 mi

More nearby: every ZIP code in Jefferson County · New York ZIP codes

Cite this page

zipcodes.pro. “Wellesley Island, NY ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/ny/wellesley-island

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