Marquette County has two sets of naming for county roads. Major roads are given a three digit name (like County Road 480). Minor roads are given a two or three letter combination (like County Road HI). Many numbered and lettered roads also have common names.

The former County Road 553 is now the state highway M-553.

Numbered county roads:

  • County Road 456 (Little Lake Road), from Little Lake on M-35 to US-41 via Carlshend
  • County Road 476, through National Mine
  • County Road 480
  • County Road 492, (Maas Street) from Negaunee to Marquette
  • County Road 502 (Midway Drive), on an old alignment of US-41 in Negaunee Township
  • County Road 510, from Negaunee Township to Big Bay
  • County Road 533 (Dukes Road), from US-41 to M-94 and the settlement of Dukes
  • County Road 550 (Big Bay Road), from Marquette to Big Bay
  • County Road 557, from M-35 near Princeton to County Road 426 in Austin
  • County Road 581 (Saginaw Street), south from Ishpeming
  • County Road 595, a proposed mining road from US-41 near M-95, north to the AAA Road and the Eagle Mine

Lettered county roads:

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