Upper Midwest
The Upper Midwest, or the North, is a region in the northern portion of the U.S. Census Bureau's Midwestern United States. It is largely a sub-region of the midwest. Although there are no uniformly agreed-upon boundaries, the region is most commonly used to refer to the states of Minnesota, Wisconsin, and Michigan. By most definitions, it extends into North and South Dakota, and northern Ohio, Indiana, Illinois, and Iowa.
Definitions
The National Weather Service defines its Upper Midwest as the states of Iowa, Michigan, Minnesota, North Dakota, South Dakota, and Wisconsin. The United States Geological Survey uses two different Upper Midwest regions:
The USGS Upper Midwest Environmental Sciences Center considers it to be the six states of Illinois, Indiana, Iowa, Michigan, Minnesota, and Wisconsin, which comprise the watersheds of the Upper Mississippi River and upper Great Lakes.
The USGS Mineral Resources Program considers the area to contain Illinois, Indiana, Michigan, Minnesota, and Wisconsin.