This guide describes 1,343 named places in the Thousand Islands area of the St. Lawrence River: 778 islands, 58 island groups, 124 points, 79 bays, 92 shoals and bars, 14 lighthouses and 57 towns and localities, among others. 785 are on the Canadian side and 555 on the United States side, across 4 counties. 880 have a map location and 439 have a measured area.

Map

Map made with Google My Maps from the Map tab of our place list.

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By side of the border

• Canada (785)
• United States (555)

By county

• Frontenac County (151)
• Jefferson County (412)
• St. Lawrence County (130)
• United Counties of Leeds and Grenville (608)

By town or township

• City of Brockville (5)
• City of Kingston (47)
• Town of Alexandria (155)
• Town of Cape Vincent (18)
• Town of Clayton (117)
• Town of Hammond (106)
• Town of Morristown (18)
• Town of Orleans (72)
• Township of Elizabethtown-Kitley (51)
• Township of Front of Yonge (97)
• Township of Frontenac Islands (93)
• Township of Leeds and the Thousand Islands (442)
• Village of Alexandria Bay (32)

By theme

• Parks (42)
• Lighthouses (14)
• Heritage-listed places (9)
• Island groups (192)

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