Midwest, region, northern and central United States, lying midway between the Appalachian and Rocky mountains and north of the Ohio River and the 37th parallel. It comprises the states of Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Nebraska, North Dakota, Ohio, South Dakota, and Wisconsin.
The Midwestern United States (or Midwest) refers to the north-central states of the United States of America, specifically Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Ohio, Nebraska, North Dakota, South Dakota, and Wisconsin. A 2006 Census Bureau estimate put the population at 66,217,736. Both the geographic center and the population center of the contiguous United States ...