- Macdonnell Heights
- Macedon
- Machias
- Macomb
- Madison
- Mahopac
- Maine
- Malba
- Malden-on-Hudson
- Malone
- Malta
- Malverne
- Malverne Park Oaks
- Mamakating
- Mamaroneck
- Manchester
- Manhasset
- Manhasset Hills
- Manhattan
- Manheim
- Manlius
- Mannsville
- Manorhaven
- Manorville
- Mansfield
- Marathon
- Marbletown
- Marcellus
- Marcy
- Margaretville
- Mariaville Lake
- Marietta
- Marilla
- Marion
- Marlboro
- Marlborough
- Marshall
- Martinsburg
- Martville
- Maryland
- Masonville
- Maspeth
- Massapequa
- Massapequa Park
- Massena
- Mastic
- Mastic Beach
- Matinecock
- Mattituck
- Mattydale
- Maybrook
- Mayfield
- Mayville
- McDonough
- McGraw
- Mechanicstown
- Mechanicville
- Medford
- Medina
- Melrose Park
- Melville
- Memphis
- Menands
- Mendon
- Mentz
- Meredith
- Merrick
- Merritt Park
- Mexico
- Middle Island
- Middle Village
- Middleburgh
- Middlebury
- Middlefield
- Middleport
- Middlesex
- Middletown
- Middletown
- Middleville
- Milan
- Milford
- Mill Neck
- Millbrook
- Miller Place
- Millerton
- Millport
- Millwood
- Milo
- Milton
- Milton
- Mina
- Minden
- Mineola
- Minerva
- Minetto
- Mineville
- Minisink
- Minoa
- Modena
- Mohawk
- Mohawk
- Mohegan Lake
- Mongaup Valley
- Monroe
- Monsey
- Montague
- Montauk
- Montebello
- Montezuma
- Montgomery
- Monticello
- Montour
- Montour Falls
- Montrose
- Moravia
- Moreau
- Morehouse
- Moriah
- Moriches
- Morris
- Morristown
- Morrisville
- Mt Hope
- Mt Ivy
- Mt Kisco
- Mt Morris
- Mt Pleasant
- Mt Sinai
- Mt Tremper
- Mt Upton
- Mt Vernon
- Mt Vision
- Mountain Dale
- Mountain Lodge Park
- Mumford
- Munnsville
- Munsey Park
- Munsons Corners
- Murray
- Muttontown
- Myers Corner