高知県室戸市| 項目名 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0-4歳 | 855 | 803 | 772 | 725 | 688 | 633 | 588 | 557 | 505 | 454 | 456 | 452 | 416 | 422 | 400 | 386 | 372 | 360 | 324 | 322 | 290 | 289 | 293 | 287 | 264 |
| 構成比（%） | 3.7 | 3.6 | 3.5 | 3.3 | 3.2 | 3.0 | 2.9 | 2.7 | 2.5 | 2.3 | 2.4 | 2.4 | 2.3 | 2.4 | 2.4 | 2.3 | 2.3 | 2.3 | 2.1 | 2.1 | 1.9 | 2.0 | 2.1 | 2.1 | 2.0 |
| 5-9歳 | 1,167 | 1,093 | 968 | 919 | 862 | 816 | 771 | 757 | 708 | 666 | 612 | 566 | 521 | 474 | 438 | 431 | 415 | 398 | 402 | 392 | 387 | 370 | 358 | 318 | 311 |
| 構成比（%） | 5.1 | 4.8 | 4.4 | 4.2 | 4.0 | 3.9 | 3.7 | 3.7 | 3.6 | 3.4 | 3.2 | 3.1 | 2.9 | 2.7 | 2.6 | 2.6 | 2.5 | 2.5 | 2.6 | 2.6 | 2.6 | 2.5 | 2.5 | 2.3 | 2.3 |
| 10-14歳 | 1,424 | 1,392 | 1,349 | 1,270 | 1,185 | 1,099 | 1,029 | 917 | 880 | 841 | 784 | 744 | 710 | 647 | 615 | 569 | 527 | 478 | 457 | 431 | 409 | 392 | 368 | 369 | 366 |
| 構成比（%） | 6.2 | 6.2 | 6.1 | 5.9 | 5.6 | 5.3 | 5.0 | 4.5 | 4.4 | 4.3 | 4.1 | 4.0 | 3.9 | 3.7 | 3.6 | 3.4 | 3.2 | 3.0 | 2.9 | 2.8 | 2.7 | 2.7 | 2.6 | 2.7 | 2.7 |
| 15-19歳 | 1,447 | 1,342 | 1,303 | 1,236 | 1,242 | 1,219 | 1,218 | 1,176 | 1,101 | 1,020 | 946 | 882 | 775 | 723 | 682 | 624 | 597 | 558 | 510 | 539 | 506 | 482 | 458 | 439 | 385 |
| 構成比（%） | 6.3 | 5.9 | 5.9 | 5.7 | 5.8 | 5.8 | 5.9 | 5.8 | 5.6 | 5.3 | 5.0 | 4.8 | 4.3 | 4.1 | 4.0 | 3.8 | 3.7 | 3.5 | 3.3 | 3.5 | 3.4 | 3.3 | 3.2 | 3.2 | 2.9 |
| 20-24歳 | 983 | 1,010 | 968 | 964 | 933 | 897 | 842 | 835 | 848 | 836 | 809 | 791 | 775 | 711 | 628 | 585 | 545 | 500 | 463 | 487 | 442 | 403 | 393 | 348 | 329 |
| 構成比（%） | 4.3 | 4.5 | 4.4 | 4.4 | 4.4 | 4.3 | 4.1 | 4.1 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.1 | 3.7 | 3.5 | 3.3 | 3.1 | 3.0 | 3.2 | 3.0 | 2.8 | 2.8 | 2.5 | 2.5 |
| 25-29歳 | 962 | 934 | 927 | 910 | 858 | 895 | 921 | 879 | 839 | 795 | 740 | 667 | 638 | 622 | 575 | 548 | 565 | 567 | 534 | 499 | 472 | 436 | 416 | 369 | 332 |
| 構成比（%） | 4.2 | 4.1 | 4.2 | 4.2 | 4.0 | 4.3 | 4.5 | 4.3 | 4.2 | 4.1 | 3.9 | 3.6 | 3.5 | 3.5 | 3.4 | 3.3 | 3.5 | 3.6 | 3.4 | 3.3 | 3.2 | 3.0 | 2.9 | 2.7 | 2.5 |
| 30-34歳 | 1,039 | 1,034 | 963 | 958 | 916 | 881 | 873 | 912 | 866 | 826 | 844 | 819 | 773 | 724 | 666 | 628 | 586 | 563 | 558 | 554 | 531 | 517 | 500 | 492 | 454 |
| 構成比（%） | 4.5 | 4.6 | 4.4 | 4.4 | 4.3 | 4.2 | 4.2 | 4.5 | 4.4 | 4.3 | 4.4 | 4.4 | 4.3 | 4.1 | 3.9 | 3.8 | 3.6 | 3.5 | 3.6 | 3.6 | 3.6 | 3.6 | 3.5 | 3.6 | 3.4 |
| 35-39歳 | 1,135 | 1,069 | 1,027 | 1,022 | 1,017 | 961 | 965 | 917 | 907 | 882 | 871 | 849 | 861 | 790 | 744 | 769 | 768 | 723 | 677 | 673 | 615 | 578 | 547 | 509 | 498 |
| 構成比（%） | 5.0 | 4.7 | 4.7 | 4.7 | 4.8 | 4.6 | 4.7 | 4.5 | 4.6 | 4.5 | 4.6 | 4.6 | 4.8 | 4.5 | 4.4 | 4.6 | 4.7 | 4.5 | 4.4 | 4.4 | 4.1 | 4.0 | 3.8 | 3.7 | 3.7 |
| 40-44歳 | 1,678 | 1,536 | 1,390 | 1,253 | 1,166 | 1,095 | 1,027 | 990 | 964 | 963 | 923 | 922 | 875 | 849 | 819 | 811 | 778 | 795 | 763 | 719 | 728 | 738 | 705 | 649 | 609 |
| 構成比（%） | 7.3 | 6.8 | 6.3 | 5.8 | 5.5 | 5.2 | 5.0 | 4.9 | 4.9 | 5.0 | 4.9 | 5.0 | 4.8 | 4.8 | 4.8 | 4.9 | 4.8 | 5.0 | 4.9 | 4.7 | 4.9 | 5.1 | 5.0 | 4.7 | 4.5 |
| 45-49歳 | 2,019 | 2,142 | 2,151 | 1,965 | 1,782 | 1,604 | 1,451 | 1,327 | 1,226 | 1,136 | 1,055 | 998 | 951 | 925 | 927 | 873 | 874 | 830 | 824 | 815 | 786 | 748 | 777 | 750 | 715 |
| 構成比（%） | 8.8 | 9.5 | 9.7 | 9.1 | 8.4 | 7.7 | 7.0 | 6.6 | 6.2 | 5.9 | 5.6 | 5.4 | 5.3 | 5.3 | 5.5 | 5.2 | 5.4 | 5.2 | 5.3 | 5.3 | 5.3 | 5.1 | 5.5 | 5.4 | 5.3 |
| 50-54歳 | 1,779 | 1,650 | 1,597 | 1,737 | 1,843 | 1,945 | 2,091 | 2,091 | 1,896 | 1,712 | 1,559 | 1,406 | 1,268 | 1,172 | 1,082 | 1,016 | 948 | 897 | 876 | 896 | 866 | 874 | 826 | 797 | 775 |
| 構成比（%） | 7.8 | 7.3 | 7.2 | 8.0 | 8.6 | 9.3 | 10.1 | 10.3 | 9.6 | 8.8 | 8.2 | 7.6 | 7.0 | 6.7 | 6.4 | 6.1 | 5.8 | 5.6 | 5.6 | 5.8 | 5.8 | 6.0 | 5.8 | 5.8 | 5.8 |
| 55-59歳 | 1,717 | 1,726 | 1,739 | 1,685 | 1,729 | 1,718 | 1,601 | 1,535 | 1,669 | 1,776 | 1,884 | 2,023 | 2,029 | 1,836 | 1,654 | 1,505 | 1,352 | 1,222 | 1,126 | 1,057 | 992 | 923 | 885 | 849 | 874 |
| 構成比（%） | 7.5 | 7.7 | 7.9 | 7.8 | 8.1 | 8.2 | 7.8 | 7.6 | 8.4 | 9.2 | 9.9 | 10.9 | 11.2 | 10.5 | 9.7 | 9.0 | 8.3 | 7.7 | 7.2 | 6.9 | 6.7 | 6.3 | 6.2 | 6.1 | 6.5 |
| 60-64歳 | 1,762 | 1,725 | 1,730 | 1,737 | 1,683 | 1,637 | 1,641 | 1,657 | 1,598 | 1,638 | 1,618 | 1,511 | 1,462 | 1,582 | 1,697 | 1,790 | 1,921 | 1,934 | 1,761 | 1,625 | 1,488 | 1,353 | 1,220 | 1,136 | 1,017 |
| 構成比（%） | 7.7 | 7.6 | 7.8 | 8.0 | 7.9 | 7.8 | 8.0 | 8.2 | 8.1 | 8.4 | 8.5 | 8.1 | 8.1 | 9.0 | 10.0 | 10.8 | 11.8 | 12.2 | 11.3 | 10.6 | 10.0 | 9.3 | 8.6 | 8.2 | 7.6 |
| 65-69歳 | 1,687 | 1,730 | 1,672 | 1,676 | 1,654 | 1,632 | 1,602 | 1,612 | 1,621 | 1,560 | 1,510 | 1,529 | 1,555 | 1,524 | 1,531 | 1,513 | 1,417 | 1,397 | 1,518 | 1,616 | 1,696 | 1,786 | 1,858 | 1,733 | 1,552 |
| 構成比（%） | 7.4 | 7.7 | 7.6 | 7.7 | 7.8 | 7.8 | 7.8 | 8.0 | 8.2 | 8.0 | 8.0 | 8.2 | 8.6 | 8.7 | 9.0 | 9.1 | 8.7 | 8.8 | 9.8 | 10.5 | 11.4 | 12.3 | 13.0 | 12.5 | 11.6 |
| 70-74歳 | 1,341 | 1,367 | 1,454 | 1,491 | 1,498 | 1,530 | 1,579 | 1,506 | 1,505 | 1,492 | 1,455 | 1,422 | 1,448 | 1,447 | 1,397 | 1,377 | 1,387 | 1,407 | 1,392 | 1,402 | 1,438 | 1,370 | 1,300 | 1,383 | 1,514 |
| 構成比（%） | 5.9 | 6.1 | 6.6 | 6.9 | 7.0 | 7.3 | 7.7 | 7.4 | 7.6 | 7.7 | 7.7 | 7.7 | 8.0 | 8.2 | 8.2 | 8.3 | 8.5 | 8.8 | 9.0 | 9.1 | 9.6 | 9.4 | 9.1 | 10.0 | 11.3 |
| 75-79歳 | 852 | 896 | 927 | 973 | 1,084 | 1,165 | 1,161 | 1,255 | 1,291 | 1,317 | 1,324 | 1,357 | 1,301 | 1,296 | 1,280 | 1,248 | 1,246 | 1,245 | 1,241 | 1,213 | 1,191 | 1,203 | 1,236 | 1,242 | 1,259 |
| 構成比（%） | 3.7 | 4.0 | 4.2 | 4.5 | 5.1 | 5.6 | 5.6 | 6.2 | 6.5 | 6.8 | 7.0 | 7.3 | 7.2 | 7.4 | 7.5 | 7.5 | 7.6 | 7.8 | 8.0 | 7.9 | 8.0 | 8.3 | 8.7 | 9.0 | 9.4 |
| 80歳以上 | 1,057 | 1,106 | 1,135 | 1,162 | 1,171 | 1,190 | 1,254 | 1,336 | 1,409 | 1,490 | 1,588 | 1,608 | 1,728 | 1,806 | 1,872 | 1,964 | 2,002 | 2,043 | 2,081 | 2,102 | 2,080 | 2,100 | 2,099 | 2,147 | 2,160 |
| 構成比（%） | 4.6 | 4.9 | 5.1 | 5.4 | 5.5 | 5.7 | 6.1 | 6.6 | 7.1 | 7.7 | 8.4 | 8.7 | 9.6 | 10.3 | 11.0 | 11.8 | 12.3 | 12.8 | 13.4 | 13.7 | 13.9 | 14.4 | 14.7 | 15.5 | 16.1 |
人口増加都市
