Castle Danger is an unincorporated community in Silver Creek Township, Lake County, Minnesota, United States.

The community is located between Two Harbors and Beaver Bay on Minnesota Highway 61, on the North Shore of Lake Superior.

Castle Danger is located 11 miles northeast of the city of Two Harbors.

Castle Danger was settled in 1890, by three Norwegian fishermen (brothers Dan, Marc, and Tom Lind), although the site was already occupied by lumber companies.

This article about a location in Lake County, Minnesota is a stub.