About

Willoughby Island is nestled within the picturesque Thousand Islands region, straddling the Canadian side of the international boundary between Canada and the United States. Positioned south of Long Schooner Island, it lies in the waters of the St. Lawrence River, a vital corridor that serves as a natural border between the two nations.

Part of the municipality of Leeds and the Thousand Islands, Willoughby Island is located in Ontario’s Leeds and Grenville County. With its geographic coordinates pinpointed at 44° 25′ 15″ N and 75° 50′ 28″ W, the island sits comfortably within the natural beauty of this renowned archipelago. The Thousand Islands region is famed for its scenic landscapes and diverse ecosystems, making Willoughby Island a part of a larger tapestry of natural wonder.

Island or Feature Name
Willoughby Island

Nationality
Canada

Centroid Lat/Long
44° 25′ 15″ N – 75° 50′ 28″ W

Two-Minute Box
44^26′ x 75^50′

Location and description
South (upriver) of Long Schooner Island, near the International Bounday,

Former, informal, or alternate names

Municipality
Leeds and Thousand Is.

County
Leeds and Grenville

Province / State
ONT

Ports?

Book refs

1000islands.co ID #
1319

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Data source.