Front Plate Required: No
Area Codes: 231, 248, 269, 278, 313, 517, 586, 616, 679, 734, 810, 906, 947, 989
License Plates:
Windshield Stickers:
Road and Highway Signs:
County Roads:
Highways:
Highway Adoption:
Historical:
The Michigan guide is not done yet.
County Road Letters
White square county road signs can also be found in Minnesota and occasionally in South Dakota and Ohio. It is also used in Apache County, Arizona, but the landscape of the American southwest is very different from the heavily wooded upper midwest.
Green square county road signs can also be found in Texas, but they are rare in both states.
Michigan