Oak Island, Minnesota is the name of an island

Island

An island or isle is any piece of sub-continental land that is surrounded by water. Very small islands such as emergent land features on atolls can be called islets, cays or keys. An island in a river or lake may be called an eyot , or holm...

 and a post office on that island in Lake of the Woods

Lake of the Woods

Lake of the Woods is a lake occupying parts of the Canadian provinces of Ontario and Manitoba and the U.S. state of Minnesota. It separates a small land area of Minnesota from the rest of the United States. The Northwest Angle and the town of Angle Township can only be reached from the rest of...

, in Lake of the Woods County, Minnesota

Lake of the Woods County, Minnesota

Lake of the Woods County is a county located in the U.S. state of Minnesota. As of 2010, the population was 4,045. Its county seat is Baudette. The county contains the Northwest Angle, the northernmost point of the Lower 48 States, and includes the U.S. portion of Lake of the Woods, shared with...

, on the Minnesota

Minnesota

Minnesota is a U.S. state located in the Midwestern United States. The twelfth largest state of the U.S., it is the twenty-first most populous, with 5.3 million residents. Minnesota was carved out of the eastern half of the Minnesota Territory and admitted to the Union as the thirty-second state...

/Ontario

Ontario

Ontario is a province of Canada, located in east-central Canada. It is Canada's most populous province and second largest in total area. It is home to the nation's most populous city, Toronto, and the nation's capital, Ottawa....

 border.

Oak Island

Oak Island is an island near the center of Lake of the Woods

Lake of the Woods

Lake of the Woods is a lake occupying parts of the Canadian provinces of Ontario and Manitoba and the U.S. state of Minnesota. It separates a small land area of Minnesota from the rest of the United States. The Northwest Angle and the town of Angle Township can only be reached from the rest of...

 at the extreme northeast corner of Minnesota's Northwest Angle

Northwest Angle

The Northwest Angle, known simply as the Angle by locals, and coextensive with Angle Township, is a part of northern Lake of the Woods County, Minnesota, and is the only place in the United States outside Alaska that is north of the 49th parallel...

 that reaches farther north than the rest of the state. Oak Island is approximately three miles long and one mile wide. The island is the site of several resorts, fishing camps, a small store, and a post office. Much of the interior of the island is part of the Red Lake Indian Reservation

Red Lake Indian Reservation

The Red Lake Indian Reservation covers 1,258.62 sq mi in parts of nine counties in northern Minnesota, United States. It is divided into many pieces, although the largest piece is centered about Red Lake, in north-central Minnesota, the largest lake entirely within that state. This section lies...

.

At the southwest tip of the island is Laketrails Island, the site of Laketrails Base Camp, a wilderness canoe trip camp for teenagers.

Post office

Oak Island, Minnesota, is a post office located at The Sportsmans Inn, also comprising a store and fishing lodge, on the northwest side of the island of Oak Island.