| State Name | County Name | City |
|---|---|---|
| Texas | Orange | Mauriceville |
| Wisconsin | Juneau | Mauston |
| Pennsylvania | Berks | Maxatawny |
| Puerto Rico | Mayagüez | Mayagüez |
| New York | Orange | Maybrook |
| California | Fresno | Mayfair |
| Kentucky | Graves | Mayfield |
| New York | Fulton | Mayfield |
| Ohio | Cuyahoga | Mayfield |
| California | Los Angeles | Mayflower Village |
| Massachusetts | Middlesex | Maynard |
| Maryland | Anne Arundel | Mayo |
| North Carolina | Rockingham | Mayodan |
| Maryland | Baltimore | Mays Chapel |
| Kentucky | Mason | Maysville |
| Pennsylvania | Lancaster | Maytown |
| Wisconsin | Dodge | Mayville |
| California | Los Angeles | Maywood |
| Illinois | Cook | Maywood |
| New Jersey | Bergen | Maywood |
| Wisconsin | Dane | Mazomanie |
| Oklahoma | Pittsburg | McAlester |
| Idaho | Valley | McCall |
| Pennsylvania | Allegheny | McCandless |
| Washington | Pierce | McChord AFB |
| Mississippi | Pike | McComb |
| Nebraska | Red Willow | McCook |
| Indiana | Hancock | McCordsville |
| Ohio | Trumbull | McDonald |
| Georgia | Henry | McDonough |
| California | Kern | McFarland |
| Wisconsin | Dane | McFarland |
| Arkansas | Desha | McGehee |
| Pennsylvania | Washington | McGovern |
| Florida | Lee | McGregor |
| Texas | McLennan | McGregor |
| New Jersey | Burlington | McGuire AFB |
| Illinois | McHenry | McHenry |
| Pennsylvania | Erie | McKean |
| Pennsylvania | Allegheny | McKees Rocks |
| Pennsylvania | Allegheny | McKeesport |
| Tennessee | Carroll | McKenzie |
| California | Humboldt | McKinleyville |
| Texas | Collin | McKinney |
| Virginia | Fairfax | McLean |
| Texas | Rockwall | McLendon-Chisholm |
| Oklahoma | Pottawatomie | McLoud |
| Oregon | Yamhill | McMinnville |
| Tennessee | Warren | McMinnville |
| Pennsylvania | Washington | McMurray |
| Virginia | Fairfax | McNair |
| Kansas | McPherson | McPherson |
| Georgia | Telfair | McRae-Helena |
| Pennsylvania | Adams | McSherrystown |
| California | Merced | McSwain |
| Colorado | Weld | Mead |
| Washington | Spokane | Mead |
| California | Riverside | Mead Valley |
| Washington | Clark | Meadow Glade |
| New Mexico | Valencia | Meadow Lake |
| Alaska | Matanuska-Susitna | Meadow Lakes |
| California | Placer | Meadow Vista |
| Florida | Orange | Meadow Woods |
| Alabama | Shelby | Meadowbrook |
| California | Riverside | Meadowbrook |
| Virginia | Chesterfield | Meadowbrook |
| Washington | Snohomish | Meadowdale |
| Pennsylvania | Butler | Meadowood |
| Texas | Fort Bend | Meadows Place |
| Pennsylvania | Crawford | Meadville |
| North Carolina | Alamance | Mebane |
| California | Riverside | Mecca |
| Pennsylvania | Cumberland | Mechanicsburg |
| New York | Orange | Mechanicstown |
| Virginia | Hanover | Mechanicsville |
| New York | Saratoga | Mechanicville |
| Massachusetts | Norfolk | Medfield |
| Massachusetts | Middlesex | Medford |
| New Jersey | Burlington | Medford |
| New York | Suffolk | Medford |
| Oregon | Jackson | Medford |
| Wisconsin | Taylor | Medford |
| New Jersey | Burlington | Medford Lakes |
| Pennsylvania | Delaware | Media |
| Washington | Spokane | Medical Lake |
| Minnesota | Hennepin | Medina |
| New York | Orleans | Medina |
| Ohio | Medina | Medina |
| Tennessee | Gibson | Medina |
| Texas | Zapata | Medina |
| Washington | King | Medina |
| Florida | Polk | Medulla |
| Massachusetts | Norfolk | Medway |
| Missouri | St. Louis | Mehlville |
| California | Ventura | Meiners Oaks |
| Florida | Brevard | Melbourne Beach |
| Ohio | Cuyahoga | Mayfield Heights |
| Texas | Hidalgo | McAllen |
| Maine | Androscoggin | Mechanic Falls |
| Florida | Brevard | Melbourne |
