M
- Mack
- Maeser
- Magna
- Main Point Condominium
- Malone
- Mammoth
- Manderfield
- Manila
- Manti
- Mantua
- Maple Grove
- Mapleton
- Margarethe
- Marion
- Marriott
- Marriott-Slaterville
- Marshall
- Martin
- Marysvale
- Matlin
- Mayfield
- McCornick
- McIntyre
- Meadow
- Meadowville
- Mendon
- Mercur
- Merrywood
- Mexican Hat
- Middle Fork Ranches
- Middleton
- Midvale
- Midway
- Milburn
- Milford
- Millcreek
- Millcreek Manor Condominium
- Mill Fork
- Mills
- Mills Junction
- Millville
- Milton
- Minersville
- Moab
- Modena
- Mohrland
- Molen
- Mona
- Monarch
- Monroe
- Montezuma Creek
- Monticello
- Moon Lake Lodge
- Moore
- Morgan
- Moroni
- Morton
- Mosida
- Motoqua
- Mounds
- Mountain Dell Park
- Mountain Green
- Mountain Home
- Mountain Terrace Subdivision Number
- Mountain Valley Meadows
- Mount Carmel
- Mount Carmel Junction
- Mount Emmons
- Mounthaven
- Mount Nebo
- Mount Ogden Park
- Mount Olympus
- Mount Pleasant
- Mt. Caramel Junction
- Mt Emmons
- Mt. Pleasant
- Murdock
- Murray
- Mutton Hollow Acres
- Mutual
- Myton