Finnish Americans in the UP are concentrated primarily in the northern central and northwestern counties, starting from Marquette County westward along the southern shore of Lake Superior. As one moves west, the proportion of Finnish Americans increases such that in Marquette County 22.1 percent are Finnish Americans, in Baraga County it is 34.6 percent, and in Keweenaw county it increases to 49.9 percent.
Source
The Delaware Finns of Colonial America