| | Dickinson County | MI | 26043 | | Iron Mountain, MI-WI 27020 | Marinette-Iron Mountain,
WI-MI 361 | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=DickinsonCounty+MI |
| | Florence County | WI | 55037 | | Iron Mountain, MI-WI 27020 | Marinette-Iron Mountain,
WI-MI 361 | Outlying | nonmetro county (rural) | recreation | https://maps.google.com/?q=FlorenceCounty+WI |
| | Marinette County | WI | 55075 | | Marinette, WI-MI 31940 | Marinette-Iron Mountain,
WI-MI 361 | Central | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=MarinetteCounty+WI |
| | Menominee County | MI | 26109 | | Marinette, WI-MI 31940 | Marinette-Iron Mountain,
WI-MI 361 | Central | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=MenomineeCounty+MI |