Region

Midwest Area Codes

Big metros like Chicago, Detroit and Minneapolis use overlays, while the Great Plains states still hold a single statewide code. The Midwest covers 12 states and 77 area codes.

States
12
Area codes
77
Most codes
Illinois
Single-code states
2

Full breakdown

Midwest states & their codes

All states →
StateCodesArea codes
Illinois13217, 224, 309, 312, 331, 618, 630, 708, 773, 779, 815, 847, 872
Indiana8219, 260, 317, 463, 574, 765, 812, 930
Iowa5319, 515, 563, 641, 712
Kansas4316, 620, 785, 913
Michigan12231, 248, 269, 313, 517, 586, 616, 734, 810, 906, 947, 989
Minnesota7218, 320, 507, 612, 651, 763, 952
Missouri6314, 417, 573, 636, 660, 816
Nebraska3308, 402, 531
North Dakota1701
Ohio11216, 220, 234, 330, 419, 440, 513, 567, 614, 740, 937
South Dakota1605
Wisconsin6262, 414, 534, 608, 715, 920

About area codes in the Midwest

Big metros like Chicago, Detroit and Minneapolis use overlays, while the Great Plains states still hold a single statewide code. Across the region's 12 states, the directory tracks 77 active area codes. The heaviest concentrations are in Illinois, Michigan, and Ohio, where large metros run overlays to keep up with demand.

At the other end, 2 states in the region still get by on a single area code, where seven-digit local dialing may persist. For the rules behind these changes, see how area codes work and 10-digit dialing.

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