Sugar Island (Michigan)

Chase Osborn Michigan Sugar Island Township, Michigan
Sugar is located in Michigan
LocationSt. Marys River
Coordinates46°26′N 84°13′W / 46.433°N 84.217°W / 46.433; -84.217Coordinates: 46°26′N 84°13′W / 46.433°N 84.217°W / 46.433; -84.217
Area49.44 sq mi (128.0 km2)
United States
CountyChippewa County
TownshipSugar Island Township
Population683 (2000)
Pop. density13.8/sq mi (5.33/km2)

Sugar Island is an island in the U.S. state of Michigan in the St. Marys River between the United States and the Canadian province of Ontario. The entire island constitutes Sugar Island Township in Chippewa County at the eastern tip of the Upper Peninsula. According to the 2000 census there were 683 people living on a land area of 128 square kilometres (49 square miles).[1]


The island lies between Lake George and Lake Nicolet, and to the north of Neebish Island and St. Joseph Island. Pine Island is just east of its southern tip. Vehicle access to the island is via a ferry service at its northwestern tip, connecting east of Sault Ste. Marie, Michigan.

The island was part of the Canada–United States border dispute settled by the Webster–Ashburton Treaty, and affirmed to be part of the United States when the treaty was signed August 9, 1842.[2]

In 1945 Sugar Island was nominated as a possible location for the headquarters of the United Nations.[3]

The island has large undeveloped areas, and both the Bay Mills Indian Community and the Sault Tribe of Chippewa Indians have interests on the island. The Sault Tribe consider it to be part of their ancestral homelands.

The University of Michigan Biological Station operates the Chase Osborn Preserve, a 3,200-acre (13-square-kilometre) tract near the southern tip of the island. The Preserve is named for Chase Osborn, an island resident who had been the Governor of Michigan.

Prominent residents

See also


  1. ^ Sugar Island Township, Chippewa County United States Census Bureau
  2. ^ "Evolution of Michigan's Legal Boundaries". MSU Libraries. Michigan State University. Retrieved September 26, 2019.
  3. ^ Mires, Charlene (Spring 2009). "Sault Ste. Marie as the Capital of the World? Stellanova Osborn and the Pursuit of the United Nations, 1945". Michigan Historical Review. Central Michigan University. 35 (1): 61–82. JSTOR 25652151.