The five Midwests

[King of Kensington]

Thoughts?  This blogger divides the Midwest into five subregions:

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Share of state population by subregion:

Ohio

Lower Lakes:  48%
Midland Valley:  33%
Heartland:  19%

Michigan

Lower Lakes:  84%
North Woods: 16%

Indiana

Lower Lakes:  33%
Heartland:  33%
Midland Valley:  33%

Illinois

Lower Lakes:  72%
Heartland:  20%
Midland Valley:  6%

Wisconsin

Lower Lakes:  58%
Heartland:  25%
North Woods:  17%

Minnesota

Heartland:  80%
North Woods:  10%
Plains:  10%

Iowa

Heartland: 75%
Plains:  25%

Missouri

Midland Valley:  42%
Plains:  33%
Heartland:  8%

Kansas

Plains:  80%

Nebraska

Plains:  67%

South Dakota

Plains:  50%

North Dakota

Plains:  50%

Note that Missouri, Kansas, Nebraska and the Dakotas are not entirely "midwestern."  

http://cornersideyard.blogspot.ca/2014/02/repost-five-midwests-part-ii.html

ETA:  I think his figures are off for the Dakotas. 

[King of Kensington]

What, the plains states aren't entirely Midwestern? So parts of Kansas and Nebraska are considered part of the Mountain West?

Western Dakotas, eastern Montana etc. are still Great Plains are "western" but not "Mountain West."  Kinda like Saskatchewan I suppose.