| | Lincoln County | MN | 27081 | | | | Non-metropolitan | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=LincolnCounty+MN |
| | Lyon County | MN | 27083 | | Marshall, MN 32140 | | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=LyonCounty+MN |
| | Mahnomen County | MN | 27087 | | | | Non-metropolitan | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=MahnomenCounty+MN |
| | Marshall County | MN | 27089 | | | | Non-metropolitan | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=MarshallCounty+MN |
| | Martin County | MN | 27091 | | Fairmont, MN 21860 | | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=MartinCounty+MN |
| | McLeod County | MN | 27085 | | Hutchinson, MN 26780 | Minneapolis-St. Paul,
MN-WI 378 | Central | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=McLeodCounty+MN |
| | Meeker County | MN | 27093 | | | | Non-metropolitan | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=MeekerCounty+MN |
| | Mille Lacs County | MN | 27095 | | Minneapolis-St.
Paul-Bloomington, MN-WI 33460 | Minneapolis-St. Paul,
MN-WI 378 | Outlying | metro county (urban) | nonspecialized | https://maps.google.com/?q=MilleLacsCounty+MN |
| | Morrison County | MN | 27097 | | | | Non-metropolitan | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=MorrisonCounty+MN |
| | Mower County | MN | 27099 | | Austin, MN 12380 | Rochester-Austin, MN 462 | Central | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=MowerCounty+MN |