City | 2024 Population |
|---|---|
| Macon | 74 |
| Macy | 631 |
| Madison | 2,108 |
| Madrid | 228 |
| Magnet | 46 |
| Malcolm | 500 |
| Malmo | 97 |
| Manley | 172 |
| Maple | 311 |
| Marble | 491 |
| Marietta | 956 |
| Marion | 117 |
| Mariposa | 408 |
| Marquette | 242 |
| Marshall | 50 |
| Martell | 96 |
| Martin | 79 |
| Martinsburg | 74 |
| Maskell | 56 |
| Mason City | 146 |
| Max | 141 |
| Maxwell | 248 |
| May | 128 |
| Maywood | 288 |
| McClure | 44 |
| McCook | 7,236 |
| McCool Junction | 507 |
| McCulley | 87 |
| McGrew | 62 |
| McLean | 36 |
| Mead | 634 |
| Meadow Grove | 265 |
| Melbeta | 109 |
| Melia | 70 |
| Memphis | 111 |
| Merna | 343 |
| Merriman | 88 |
| Merry | 62 |
| Michigan | 70 |
| Milburn | 63 |
| Milford | 2,261 |
| Miller | 128 |
| Milligan | 238 |
| Minatare | 698 |
| Minden | 3,079 |
| Mirage | 936 |
| Mitchell | 1,506 |
| Momence | 64 |
| Monowi | 1 |
| Monroe | 282 |
| Monterey | 187 |
| Moorefield | 28 |
| Morrill | 906 |
| Morse Bluff | 126 |
| Morton | 87 |
| Mullen | 441 |
| Murdock | 278 |
| Murray | 497 |
| Myrtle | 98 |