| City Name |
City Code(s) |
| Machida, Tokyo |
44, 427 |
| Maebaru, Fukuoka |
92 |
| Maebashi, Gunma |
27 |
| Maizuru, Kyoto |
773 |
| Makabe District, Ibaraki |
296 |
| Makurazaki, Kagoshima |
993 |
| Maniwa District, Okayama |
867 |
| Marugame, Kagawa |
877 |
| Mashike District, Hokkaido |
164 |
| Mashita District, Gifu |
576 |
| Masuda, Shimane |
856 |
| Matsubara, Osaka |
723 |
| Matsudo, Chiba |
47 |
| Matsue, Shimane |
852 |
| Matsumae District, Hokkaido |
1394 |
| Matsumoto, Nagano |
263 |
| Matsusaka, Mie |
598 |
| Matsuura, Nagasaki |
956 |
| Matsuyama, Ehime |
89 |
| Matto, Ishikawa |
76 |
| Menashi District, Hokkaido |
1538 |
| Mihara District, Hyogo |
799 |
| Mihara, Hiroshima |
848 |
| Mii District, Fukuoka |
942 |
| Miike District, Fukuoka |
944 |
| Mikasa, Hokkaido |
1267 |
| Mikata District, Fukui |
770 |
| Mikata District, Hyogo |
796 |
| Miki, Hyogo |
794 |
| Mima District, Tokushima |
883 |
| Minamata, Kumamoto |
966 |
| Minamiaizu District, Fukushima |
241 |
| Minamiakita District, Akita |
185, 188 |
| Minamiamabe District, Oita |
972, 982 |
| Minamiashigara, Kanagawa |
465 |
| Minamiazumi District, Nagano |
263 |
| Minamikanbara District, Niigata |
256 |
| Minamikawachi District, Osaka |
721, 723 |
| Minamikoma District, Yamanashi |
556 |
| Minamimatsura District, Nagasaki |
959 |
| Minamimuro District, Mie |
735, 5979, 7354 |
| Minaminaka District, Miyazaki |
987 |
| Minamisaitama District, Saitama |
480 |
| Minamisaku District, Nagano |
267, 274 |
| Minamishitara District, Aichi |
5363 |
| Minamitakaki District, Nagasaki |
957 |
| Minamitsugaru District, Aomori |
172 |
| Minamitsuru District, Yamanashi |
427, 554, 555 |
| Minamiuonuma District, Niigata |
257, 258 |
| Minamiuwa District, Ehime |
895 |
| Mine District, Yamaguchi |
8376, 8396 |
| Mine, Yamaguchi |
8375 |
| Mino District, Hyogo |
794 |
| Mino District, Shimane |
856 |
| Mino, Gifu |
575 |
| Minoh, Osaka |
727 |
| Minokamo, Gifu |
574 |
| Misato, Saitama |
489 |
| Mishima District, Osaka |
75 |
| Mishima, Shizuoka |
559 |
| Mitaka, Tokyo |
422 |
| Mito, Ibaraki |
29 |
| Mitoyo District, Kagawa |
875, 896 |
| Mitsu District, Okayama |
866, 867 |
| Mitsugi District, Hiroshima |
848, 8487, 84732 |
| Mitsuishi District, Hokkaido |
1463 |
| Mitsukaido, Ibaraki |
297 |
| Mitsuke, Niigata |
258 |
| Miura District, Kanagawa |
468 |
| Miura, Kanagawa |
468 |
| Miyake, Tokyocoho |
4994 |
| Miyaki District, Saga |
942, 952 |
| Miyako District, Fukuoka |
93, 9302, 9304, 93032, 93033 |
| Miyako District, Okinawa |
9807 |
| Miyako, Iwate |
193 |
| Miyakonojo, Miyazaki |
986 |
| Miyazu, Kyoto |
772 |
| Miyoshi District, Tokushima |
883, 886 |
| Miyoshi, Hiroshima |
824, 826 |
| Mizuma District, Fukuoka |
942, 944 |
| Mizunami, Gifu |
572, 573, 574 |
| Mizusawa, Iwate |
197 |
| Mobara, Chiba |
475 |
| Mogami District, Yamagata |
23, 234 |
| Monbetsu District, Hokkaido |
1584, 1586, 1587, 1588, 15829 |
| Monbetsu, Hokkaido |
1582 |
| Monou District, Miyagi |
225 |
| Mooka, Tochigi |
285 |
| Moriguchi, Osaka |
6 |
| Morioka, Iwate |
19 |
| Moriyama, Shiga |
77 |
| Motosu District, Gifu |
58, 581, 584, 585, 58138 |
| Motoyoshi District, Miyagi |
225, 226 |
| Mugi District, Gifu |
575, 58157, 58158 |
| Muko, Kyoto |
75 |
| Munakata District, Fukuoka |
940 |
| Munakata, Fukuoka |
940 |
| Murakami, Niigata |
254 |
| Murayama, Yamagata |
237 |
| Muroran, Hokkaido |
143 |
| Muroto, Kochi |
8872 |
| Musashimurayama, Tokyo |
42 |
| Musashino, Tokyo |
422 |
| Mutsu, Aomori |
175 |
| Myodo District, Tokushima |
886 |
| Myozai District, Tokushima |
886 |
Japan