In which region do Kansas, Nebraska, & the Dakotas fit?

[Tieteobserver]

When it comes to dividing America into regions, I follow the official US Census, except that I merge the Midwest and the Northeast into a larger region called, guess what, North, and I tend to include both DE and MD on it.

[Tieteobserver]

Of relevance: http://fivethirtyeight.com/datalab/what-states-are-in-the-midwest/

Funny that the three most Midwestern states according to that are all next to each other alphabetically.

This is what I consider the Midwest:

Dark Green:  Solidly Midwestern
Medium Green:  Mostly Midwestern
Light Green:  Not Midwestern, but with some Midwestern influence

Nice map. Only changes I'd make: MO and OH, to me, are solidly Mid-western too, in spite of a somewhat strong Southern influence on the former.