| Source | UN (World Urbanization Prospects 2018) |
| Date | 01 Apr 2024 |
| Code | City | Population | Share (%) | Rank | Change | |||
|---|---|---|---|---|---|---|---|---|
| 2023 | 2024 | Japan | World | Population | (%) | |||
| Toky | Tokyo | 37,194,105 | 37,115,035 | 30.3 | 1 | 1 | -79,070 | -0.21 |
| Kink | Kinki M.M.A. (Osaka) | 19,013,434 | 18,967,459 | 15.5 | 2 | 11 | -45,975 | -0.24 |
| Chuk | Chukyo M.M.A. (Nagoya) | 9,569,328 | 9,556,879 | 7.79 | 3 | 42 | -12,449 | -0.13 |
| Kita | Kitakyushu-Fukuoka M.M.A. | 5,490,271 | 5,478,076 | 4.47 | 4 | 86 | -12,195 | -0.22 |
| Shiz | Shizuoka-Hamamatsu M.M.A. | 2,937,359 | 2,935,527 | 2.39 | 5 | 192 | -1,832 | -0.06 |
| Sapp | Sapporo | 2,666,112 | 2,660,947 | 2.17 | 6 | 213 | -5,165 | -0.19 |
| Send | Sendai | 2,342,302 | 2,341,433 | 1.91 | 7 | 243 | -869 | -0.04 |
| Hiro | Hiroshima | 2,067,591 | 2,062,884 | 1.68 | 8 | 277 | -4,707 | -0.23 |
| Niig | Niigata | 797,865 | 795,916 | 0.649 | 9 | 795 | -1,949 | -0.24 |
| Kuma | Kumamoto | 738,415 | 736,779 | 0.601 | 10 | 872 | -1,636 | -0.22 |
| Okay | Okayama | 722,077 | 720,343 | 0.587 | 11 | 892 | -1,734 | -0.24 |
| Kago | Kagoshima | 583,552 | 581,211 | 0.474 | 12 | 1117 | -2,341 | -0.40 |
| Utsu | Utsunomiya | 520,105 | 518,834 | 0.423 | 13 | 1249 | -1,271 | -0.24 |
| Mats | Matsuyama | 505,139 | 503,659 | 0.411 | 14 | 1283 | -1,480 | -0.29 |
| Oita | Oita | 476,532 | 475,472 | 0.388 | 15 | 1352 | -1,060 | -0.22 |
| Kura | Kurashiki | 472,526 | 471,431 | 0.384 | 16 | 1364 | -1,095 | -0.23 |
| Kana | Kanazawa | 463,327 | 462,233 | 0.377 | 17 | 1393 | -1,094 | -0.24 |
| Fuku | Fukuyama | 462,608 | 461,529 | 0.376 | 18 | 1398 | -1,079 | -0.23 |
| Taka | Takamatsu | 416,573 | 415,595 | 0.339 | 19 | 1529 | -978 | -0.23 |
| Toya | Toyama | 408,756 | 407,299 | 0.332 | 20 | 1551 | -1,457 | -0.36 |
| Naga | Nagasaki | 403,431 | 399,994 | 0.326 | 21 | 1577 | -3,437 | -0.85 |
| Miya | Miyazaki | 396,489 | 395,600 | 0.323 | 22 | 1594 | -889 | -0.22 |
| Toyo | Toyohashi | 367,414 | 366,303 | 0.299 | 23 | 1701 | -1,111 | -0.30 |
| Naga | Nagano | 367,192 | 365,698 | 0.298 | 24 | 1703 | -1,494 | -0.41 |
| Taka | Takasaki | 365,835 | 365,016 | 0.298 | 25 | 1705 | -819 | -0.22 |
| Iwak | Iwaki | 355,780 | 355,187 | 0.290 | 26 | 1739 | -593 | -0.17 |
| Kori | Koriyama | 326,510 | 325,221 | 0.265 | 27 | 1831 | -1,289 | -0.39 |
| Maeb | Maebashi | 325,915 | 324,463 | 0.265 | 28 | 1833 | -1,452 | -0.45 |
| Asah | Asahikawa | 324,402 | 322,338 | 0.263 | 29 | 1837 | -2,064 | -0.64 |
| Koch | Kochi | 323,891 | 322,061 | 0.263 | 30 | 1838 | -1,830 | -0.57 |
| Naha | Naha | 319,379 | 318,539 | 0.260 | 31 | 1844 | -840 | -0.26 |
| Kuru | Kurume | 302,963 | 302,245 | 0.246 | 32 | 1856 | -718 | -0.24 |
| Akit | Akita | 300,485 | 298,421 | 0.243 | 33 | 1858 | -2,064 | -0.69 |