Occurrences of fire (Number)
| 1990 | 2000 | 2005 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 |
| Hokkaido | 2 280 | 2 342 | 2 141 | 2 125 | 2 152 | 1 916 | 1 891 | 2 083 | 1 909 | 1 859 | 1 692 | 1 685 | 1 892 | 1 766 | 1 728 |
| Aomori | 646 | 606 | 651 | 527 | 522 | 525 | 524 | 584 | 600 | 472 | 443 | 456 | 606 | 482 | 494 |
| Iwate | 515 | 517 | 459 | 449 | 565 | 500 | 481 | 482 | 479 | 438 | 421 | 384 | 443 | 376 | 363 |
| Miyagi | 1 120 | 1 128 | 1 121 | 953 | 1 200 | 845 | 893 | 846 | 779 | 734 | 724 | 650 | 654 | 642 | 614 |
| Akita | 489 | 475 | 414 | 332 | 336 | 386 | 349 | 351 | 373 | 311 | 266 | 291 | 356 | 306 | 320 |
| Yamagata | 486 | 519 | 451 | 362 | 380 | 415 | 376 | 462 | 372 | 311 | 336 | 305 | 332 | 308 | 310 |
| Fukushima | 836 | 1 086 | 915 | 730 | 851 | 671 | 823 | 678 | 660 | 640 | 597 | 632 | 657 | 494 | 599 |
| Ibaraki | 1 497 | 2 049 | 1 822 | 1 257 | 1 494 | 1 398 | 1 376 | 1 300 | 1 159 | 1 062 | 1 154 | 1 158 | 1 249 | 1 051 | 1 149 |
| Tochigi | 976 | 1 231 | 1 112 | 875 | 935 | 834 | 984 | 856 | 778 | 669 | 752 | 636 | 760 | 600 | 701 |
| Saitama | 2 593 | 3 236 | 3 042 | 2 552 | 2 775 | 2 501 | 2 407 | 2 364 | 1 988 | 1 835 | 2 016 | 1 819 | 1 867 | 1 586 | 1 733 |
| Chiba | 2 713 | 3 215 | 2 824 | 2 288 | 2 531 | 2 098 | 2 468 | 2 242 | 2 005 | 1 742 | 1 998 | 1 924 | 1 863 | 1 654 | 1 729 |
| Kanagawa | 2 829 | 3 083 | 2 964 | 2 561 | 2 753 | 2 296 | 2 448 | 2 377 | 2 064 | 1 927 | 2 141 | 1 886 | 1 920 | 1 804 | 1 851 |
| Niigata | 939 | 925 | 728 | 638 | 649 | 697 | 616 | 632 | 578 | 573 | 477 | 571 | 528 | 513 | 531 |
| Toyama | 244 | 258 | 275 | 221 | 210 | 218 | 240 | 219 | 188 | 195 | 184 | 170 | 190 | 172 | 168 |
| Ishikawa | 387 | 424 | 358 | 288 | 322 | 333 | 322 | 257 | 240 | 244 | 245 | 243 | 223 | 215 | 218 |
| Fukui | 289 | 310 | 299 | 224 | 190 | 203 | 226 | 213 | 185 | 196 | 165 | 199 | 170 | 172 | 152 |
| Yamanashi | 427 | 598 | 531 | 369 | 535 | 424 | 527 | 436 | 359 | 338 | 360 | 349 | 359 | 304 | 330 |
| Nagano | 839 | 1 125 | 1 085 | 801 | 1 126 | 821 | 1 143 | 954 | 820 | 786 | 843 | 941 | 905 | 775 | 774 |
| Gifu | 1 047 | 1 024 | 969 | 802 | 842 | 757 | 963 | 869 | 674 | 686 | 667 | 725 | 624 | 611 | 611 |
| Shizuoka | 1 792 | 2 088 | 1 732 | 1 223 | 1 480 | 1 217 | 1 247 | 1 208 | 1 080 | 967 | 1 160 | 1 045 | 1 010 | 880 | 1 001 |
| Aichi | 3 745 | 4 260 | 3 591 | 2 821 | 2 899 | 2 624 | 3 075 | 2 551 | 2 022 | 2 042 | 2 126 | 2 082 | 2 009 | 1 870 | 1 779 |
| Mie | 902 | 1 051 | 989 | 771 | 847 | 714 | 843 | 797 | 604 | 654 | 634 | 738 | 660 | 615 | 621 |
| Shiga | 395 | 559 | 551 | 485 | 503 | 407 | 562 | 471 | 405 | 448 | 407 | 406 | 383 | 378 | 375 |
| Nara | 345 | 628 | 485 | 435 | 435 | 396 | 453 | 525 | 467 | 448 | 449 | 454 | 385 | 418 | 369 |
| Wakayama | 335 | 547 | 496 | 351 | 418 | 365 | 434 | 357 | 294 | 353 | 350 | 336 | 346 | 294 | 304 |
| Tottori | 236 | 298 | 270 | 244 | 254 | 238 | 290 | 234 | 203 | 219 | 182 | 223 | 219 | 177 | 187 |
| Shimane | 424 | 521 | 401 | 379 | 346 | 310 | 378 | 319 | 293 | 256 | 294 | 309 | 267 | 269 | 237 |
| Okayama | 818 | 972 | 1 014 | 806 | 763 | 680 | 755 | 686 | 599 | 601 | 758 | 751 | 662 | 689 | 673 |
| Hiroshima | 1 693 | 1 520 | 1 364 | 1 189 | 1 230 | 1 027 | 1 058 | 873 | 859 | 781 | 817 | 881 | 841 | 736 | 737 |
| Yamaguchi | 712 | 775 | 707 | 634 | 613 | 566 | 616 | 500 | 422 | 434 | 500 | 518 | 513 | 512 | 479 |
| Tokushima | 406 | 346 | 334 | 297 | 284 | 200 | 303 | 232 | 225 | 239 | 265 | 275 | 277 | 286 | 279 |
| Kagawa | 514 | 523 | 484 | 435 | 428 | 330 | 387 | 350 | 323 | 298 | 340 | 338 | 331 | 319 | 331 |
| Ehime | 649 | 626 | 653 | 575 | 541 | 523 | 536 | 467 | 422 | 389 | 418 | 411 | 395 | 372 | 388 |
| Fukuoka | 2 424 | 2 412 | 2 342 | 1 767 | 1 832 | 1 678 | 1 742 | 1 507 | 1 395 | 1 274 | 1 443 | 1 354 | 1 348 | 1 230 | 1 231 |
| Saga | 318 | 481 | 469 | 327 | 317 | 279 | 387 | 307 | 259 | 258 | 385 | 311 | 305 | 291 | 259 |
| Nagasaki | 638 | 706 | 792 | 568 | 626 | 498 | 580 | 458 | 394 | 482 | 479 | 537 | 425 | 394 | 428 |
| Kumamoto | 645 | 847 | 851 | 617 | 638 | 499 | 654 | 595 | 547 | 592 | 631 | 705 | 631 | 604 | 676 |
| Miyazaki | 610 | 604 | 630 | 483 | 607 | 448 | 581 | 488 | 481 | 399 | 512 | 444 | 384 | 442 | 452 |
| Kagoshima | 869 | 1 100 | 1 150 | 761 | 831 | 702 | 787 | 703 | 670 | 604 | 683 | 605 | 645 | 667 | 640 |
| Okinawa | 477 | 455 | 428 | 443 | 505 | 413 | 535 | 516 | 532 | 421 | 517 | 469 | 426 | 460 | 449 |