The Whitefish River Valley is located in the unorganized area of Thunder Bay District, Ontario, and is named for the Whitefish River that flows through it. The valley is home to several small communities that developed when land was opened for homesteading along the Port Arthur, Duluth and Western Railway line at the turn of the 20th century and many people, particularly those from Finland, settled in the area. Today it has a population of approximately 1,362.