Minnesota's minimum wage for all but the smallest employers rises to $9 per hour on Aug. 1. It will give Minnesota the highest rate of any state in middle America.

Here are the minimum wages of nearby states as of Aug. 1:

Illinois - $8.25

Indiana - $7.25

Iowa - $7.25

Michigan - $8.15

Missouri - $7.65

Nebraska - $8.00

North Dakota - $7.25

South Dakota - $8.50

Wisconsin - $7.25

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Source: National Conference of State Legislatures