Idaho Cities
- Mace, ID
- Mackay, ID
- Mackay Bar, ID
- Macks Inn, ID
- Macon, ID
- Maddens, ID
- Magic, ID
- Magic City, ID
- Magic Resort, ID
- Malad City, ID
- Malta, ID
- Manson, ID
- Mapleton, ID
- Marble Creek, ID
- Marion, ID
- Mark, ID
- Marsh Valley, ID
- Marsing, ID
- Martin, ID
- Marysville, ID
- Mashburn, ID
- May, ID
- Mayfield, ID
- McCall, ID
- McCammon, ID
- McCarthy, ID
- McDonaldville, ID
- McGuire, ID
- McHenry, ID
- McMillan, ID
- Meadow Creek, ID
- Meadows, ID
- Medimont, ID
- Melba, ID
- Melrose, ID
- Menan, ID
- Meridian, ID
- Mesa, ID
- Mesa Siding, ID
- Mica, ID
- Michaud, ID
- Midasville, ID
- Middleton, ID
- Midnight, ID
- Midvale, ID
- Midway, ID
- Miller Creek Settlement, ID
- Milner, ID
- Milo, ID
- Mineral, ID
- Minidoka, ID
- Mink Creek, ID
- Mitchell, ID
- Mohler, ID
- Monteview, ID
- Montour, ID
- Montpelier, ID
- Moody, ID
- Moore, ID
- Moose City, ID
- Mora, ID
- Moravia, ID
- Moreland, ID
- Morgan, ID
- Morrow, ID
- Morton, ID
- Moscow, ID
- Moss, ID
- Mound Valley, ID
- Mount Idaho, ID
- Mountain Home, ID
- Mountain Home AFB, ID
- Mowry, ID
- Moyie Springs, ID
- Mozart, ID
- Mud Lake, ID
- Mud Springs, ID
- Mullan, ID
- Murphy, ID
- Murphy Hot Springs, ID
- Murray, ID
- Murtaugh, ID
- Musselshell, ID
- Myers, ID
- Myrtle, ID
