Listen nedenfor viser en rangordning af de største byer i Japan efter antal indbyggere :
( Kilde: Bureau of Statistics of Japan )
| Rang | Kommunen | Præfektur | Befolkning | Tidligere befolkning | Variation | Dateret |
|---|---|---|---|---|---|---|
| 1 | 23 Tokyo særlige bydele | Tokyo | 9 233 460 | 8 949 447 | + 3,17% | 09/2015 |
| 2 | Yokohama | Kanagawa | 3.718.913 | 3.689.603 | + 0,79% | 05/2015 |
| 3 | Ōsaka | Ōsaka | 2.694.392 | 2.666.371 | + 1,05% | 05/2015 |
| 4 | Nagoya | Aichi | 2.280.415 | 2.263.907 | + 0,73% | 05/2015 |
| 5 | Sapporo | Ishikari | 1 934 675 | 1 914 434 | + 1,06% | 03/2015 |
| 6 | Kobe | Hyogo | 1.536.499 | 1.544.873 | -0,54% | 05/2015 |
| 7 | Fukuoka | Fukuoka | 1.531.919 | 1 463 826 | + 4,65% | 09/2015 |
| 8 | Kawasaki | Kanagawa | 1.470.367 | 1.425.678 | + 3,13% | 05/2015 |
| 9 | Kyoto | Kyoto | 1 469 107 | 1 474 473 | -0,36% | 05/2015 |
| 10 | Saitama | Saitama | 1.257.262 | 1 222 910 | + 2,86% | 05/2015 |
| 11 | Hiroshima | Hiroshima | 1.186.655 | 1.174.209 | + 1,06% | 05/2015 |
| 12 | Sendai | Miyagi | 1.075.813 | 1.045.903 | + 2,86% | 09/2015 |
| 13 | Chiba | Chiba | 967 679 | 962130 | -0,03% | 05/2015 |
| 14 | Kitakyushu | Fukuoka | 958 215 | 977,288 | -1,95% | 09/2015 |
| 15 | Sakai | Osaka | 838.541 | 842 134 | + 0,58% | 05/2015 |
| 16 | Niigata | Niigata | 806 621 | 812 192 | -0,69% | 05/2015 |
| 17 | Hamamatsu | Shizuoka | 789.407 | 800 912 | -1,81% | 09/2015 |
| 18 | Kumamoto | Kumamoto | 739.638 | 734,294 | + 0,73% | 05/2015 |
| 19 | Sagamihara | Kanagawa | 723.573 | 717.561 | + 0,84% | 05/2015 |
| 20 | Okayama | Okayama | 715 613 | 709.584 | + 0,85% | 05/2015 |
| 21 | Shizuoka | Shizuoka | 703,393 | 716,328 | -1,81% | 09/2015 |
| 22 | Funabashi | Chiba | 622,217 | 609.081 | + 2,16% | 05/2015 |
| 23 | Kagoshima | Kagoshima | 605.575 | 605.940 | -0,06% | 05/2015 |
| 24 | Hachiōji | Tokyo | 579.378 | 579.799 | -0,07% | 09/2015 |
| 25 | Kawaguchi | Saitama | 573.892 | 561,211 | + 2,26% | 05/2015 |
| 26 | Himeji | Hyogo | 533 165 | 536,338 | -0,59% | 05/2015 |
| 27 | Utsunomiya | Tochigi | 518 670 | 511,296 | + 1,44% | 09/2015 |
| 28 | Matsuyama | Ehime | 515 937 | 517 088 | -0,22% | 05/2015 |
| 29 | Higashiōsaka | Osaka | 502,259 | 509.632 | -1,45% | 05/2015 |
| 30 | Matsudo | Chiba | 487 712 | 484.639 | -0,43% | 05/2015 |
| 31 | Nishinomiya | Hyogo | 485,399 | 482 790 | + 1,02% | 05/2015 |
| 32 | Kurashiki | Okayama | 478.864 | 475.513 | + 0,70% | 05/2015 |
| 33 | Ōita | Ōita | 478.025 | 473 955 | + 0,86% | 09/2015 |
| 34 | Ichikawa | Chiba | 475.207 | 474 926 | + 0,06% | 05/2015 |
| 35 | Kanazawa | Ishikawa | 465,279 | 462.478 | + 0,61% | 05/2015 |
| 36 | Fukuyama | Hiroshima | 460.820 | 461.471 | -0,14% | 05/2015 |
| 37 | Amagasaki | Hyogo | 446,286 | 453.608 | -1,61% | 05/2015 |
| 38 | Nagasaki | Nagasaki | 431,232 | 443.469 | -2,76% | 05/2015 |
| 39 | Machida | Tokyo | 429,216 | 426.827 | + 0,56% | 09/2015 |
| 40 | Fujisawa | Kanagawa | 421 604 | 409.734 | + 2,90% | 05/2015 |
| 41 | Takamatsu | Kagawa | 420 615 | 419,291 | + 0,32% | 05/2015 |
| 42 | Toyota | Aichi | 420.076 | 421 552 | -0,35% | 05/2015 |
| 43 | Toyama | Toyama | 417.979 | 421 890 | -0,93% | 09/2015 |
| 44 | Kashiwa | Chiba | 410.495 | 404.079 | + 1,59% | 05/2015 |
| 45 | Gifu | Gifu | 408.556 | 413 239 | -1,13% | 05/2015 |
| 46 | Yokosuka | Kanagawa | 406.708 | 418.448 | -2,81% | 05/2015 |
| 47 | Hirakata | Osaka | 403 423 | 407.997 | -1,12% | 05/2015 |
| 48 | Miyazaki | Miyazaki | 401824 | 400 352 | + 0,37% | 05/2015 |
| 49 | Toyonaka | Osaka | 397.150 | 389.359 | + 2,00% | 05/2015 |
| 50 | Nagano | Nagano | 376.578 | 381 533 | -1,30% | 05/2015 |
Opdateret fra den japanske side i november 2015.