- Murray Trailer Park
- Manson
- Mannix
- McDonald
- McGillvary
- McCloud
- Medicine Hot Springs
- Mountain Shadows Estates
- Mountain View Trailer Court
- Marys Island
- Midway
- Macon
- Moes Trailer Court
- McDonald
- McElroy
- McQueen
- Meaderville
- Miles Crossing
- Moose Town
- Meyers Creek
- Mountain View
- Martin City
- Melstone
- Miles City
- Missoula
- Malone
- Miller Colony
- Montana City
- Madoc
- Maiden Rock