北海道岩内郡岩内町| 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 | 832 | 874 | 820 | 792 | 793 | 744 | 705 | 658 | 619 | 606 | 627 | 623 | 579 | 536 | 506 | 473 | 471 | 474 | 475 | 452 | 438 | 414 | 395 | 372 | 343 |
| 構成比（%） | 4.5 | 4.8 | 4.6 | 4.5 | 4.5 | 4.3 | 4.1 | 3.8 | 3.7 | 3.7 | 3.8 | 3.8 | 3.6 | 3.4 | 3.3 | 3.1 | 3.2 | 3.2 | 3.3 | 3.2 | 3.2 | 3.1 | 3.0 | 2.9 | 2.7 |
| 5-9歳 | 929 | 824 | 828 | 811 | 801 | 812 | 836 | 815 | 782 | 745 | 701 | 684 | 646 | 633 | 603 | 595 | 563 | 519 | 466 | 472 | 430 | 442 | 459 | 453 | 433 |
| 構成比（%） | 5.1 | 4.5 | 4.6 | 4.6 | 4.5 | 4.7 | 4.9 | 4.8 | 4.6 | 4.5 | 4.3 | 4.2 | 4.0 | 4.0 | 3.9 | 3.9 | 3.8 | 3.6 | 3.3 | 3.3 | 3.1 | 3.3 | 3.5 | 3.5 | 3.4 |
| 10-14歳 | 1,054 | 1,047 | 1,004 | 958 | 919 | 841 | 793 | 815 | 795 | 781 | 796 | 811 | 776 | 757 | 724 | 657 | 625 | 600 | 587 | 570 | 571 | 526 | 484 | 448 | 444 |
| 構成比（%） | 5.8 | 5.8 | 5.6 | 5.4 | 5.2 | 4.9 | 4.6 | 4.8 | 4.7 | 4.7 | 4.9 | 5.0 | 4.8 | 4.8 | 4.7 | 4.4 | 4.2 | 4.1 | 4.1 | 4.0 | 4.1 | 3.9 | 3.7 | 3.5 | 3.5 |
| 15-19歳 | 1,070 | 1,014 | 1,005 | 986 | 976 | 953 | 946 | 914 | 868 | 820 | 756 | 731 | 735 | 717 | 715 | 716 | 724 | 706 | 663 | 653 | 586 | 564 | 540 | 529 | 508 |
| 構成比（%） | 5.8 | 5.6 | 5.6 | 5.6 | 5.5 | 5.5 | 5.5 | 5.3 | 5.2 | 4.9 | 4.6 | 4.5 | 4.6 | 4.5 | 4.6 | 4.7 | 4.9 | 4.8 | 4.6 | 4.6 | 4.3 | 4.2 | 4.1 | 4.1 | 4.0 |
| 20-24歳 | 1,021 | 1,027 | 962 | 889 | 881 | 797 | 770 | 782 | 743 | 714 | 728 | 724 | 688 | 622 | 623 | 578 | 541 | 550 | 538 | 531 | 544 | 508 | 497 | 476 | 465 |
| 構成比（%） | 5.6 | 5.7 | 5.4 | 5.0 | 5.0 | 4.6 | 4.5 | 4.6 | 4.4 | 4.3 | 4.4 | 4.4 | 4.3 | 3.9 | 4.0 | 3.8 | 3.6 | 3.8 | 3.8 | 3.8 | 4.0 | 3.8 | 3.8 | 3.7 | 3.7 |
| 25-29歳 | 1,015 | 1,049 | 1,029 | 1,025 | 1,022 | 1,033 | 1,001 | 930 | 886 | 838 | 776 | 736 | 722 | 693 | 658 | 617 | 654 | 630 | 597 | 590 | 534 | 488 | 475 | 479 | 477 |
| 構成比（%） | 5.5 | 5.8 | 5.7 | 5.8 | 5.8 | 6.0 | 5.8 | 5.4 | 5.3 | 5.1 | 4.7 | 4.5 | 4.5 | 4.4 | 4.3 | 4.1 | 4.4 | 4.3 | 4.2 | 4.2 | 3.9 | 3.6 | 3.6 | 3.7 | 3.8 |
| 30-34歳 | 1,090 | 1,055 | 1,043 | 1,012 | 990 | 992 | 1,015 | 1,043 | 1,043 | 1,020 | 1,026 | 1,001 | 935 | 890 | 813 | 746 | 682 | 655 | 628 | 628 | 607 | 618 | 608 | 570 | 527 |
| 構成比（%） | 5.9 | 5.8 | 5.8 | 5.7 | 5.6 | 5.7 | 5.9 | 6.1 | 6.2 | 6.2 | 6.3 | 6.1 | 5.8 | 5.6 | 5.3 | 4.9 | 4.6 | 4.5 | 4.4 | 4.4 | 4.4 | 4.6 | 4.6 | 4.4 | 4.2 |
| 35-39歳 | 1,073 | 1,013 | 1,021 | 1,035 | 1,034 | 1,020 | 1,003 | 985 | 965 | 961 | 961 | 1,009 | 1,014 | 997 | 997 | 984 | 949 | 870 | 811 | 794 | 723 | 679 | 659 | 626 | 603 |
| 構成比（%） | 5.9 | 5.6 | 5.7 | 5.9 | 5.9 | 5.9 | 5.8 | 5.8 | 5.7 | 5.8 | 5.9 | 6.2 | 6.3 | 6.3 | 6.5 | 6.5 | 6.4 | 6.0 | 5.7 | 5.6 | 5.3 | 5.1 | 5.0 | 4.8 | 4.8 |
| 40-44歳 | 1,404 | 1,287 | 1,146 | 1,071 | 1,035 | 965 | 966 | 995 | 1,013 | 985 | 976 | 964 | 953 | 938 | 933 | 920 | 933 | 935 | 946 | 929 | 938 | 893 | 840 | 783 | 759 |
| 構成比（%） | 7.7 | 7.1 | 6.4 | 6.1 | 5.9 | 5.6 | 5.6 | 5.8 | 6.0 | 5.9 | 6.0 | 5.9 | 5.9 | 6.0 | 6.0 | 6.1 | 6.3 | 6.4 | 6.6 | 6.6 | 6.8 | 6.7 | 6.4 | 6.1 | 6.0 |
| 45-49歳 | 1,330 | 1,464 | 1,486 | 1,477 | 1,431 | 1,323 | 1,242 | 1,131 | 1,028 | 978 | 932 | 959 | 960 | 979 | 961 | 956 | 929 | 924 | 905 | 905 | 873 | 891 | 904 | 895 | 882 |
| 構成比（%） | 7.3 | 8.1 | 8.3 | 8.4 | 8.1 | 7.6 | 7.2 | 6.6 | 6.1 | 5.9 | 5.7 | 5.9 | 6.0 | 6.2 | 6.2 | 6.3 | 6.2 | 6.3 | 6.3 | 6.4 | 6.3 | 6.6 | 6.9 | 6.9 | 7.0 |
| 50-54歳 | 1,415 | 1,295 | 1,293 | 1,277 | 1,258 | 1,338 | 1,416 | 1,425 | 1,435 | 1,379 | 1,272 | 1,187 | 1,071 | 990 | 939 | 901 | 906 | 916 | 934 | 930 | 929 | 894 | 875 | 878 | 864 |
| 構成比（%） | 7.7 | 7.1 | 7.2 | 7.2 | 7.1 | 7.7 | 8.2 | 8.3 | 8.5 | 8.3 | 7.8 | 7.3 | 6.7 | 6.3 | 6.1 | 6.0 | 6.1 | 6.3 | 6.5 | 6.6 | 6.7 | 6.7 | 6.6 | 6.8 | 6.8 |
| 55-59歳 | 1,493 | 1,478 | 1,436 | 1,392 | 1,383 | 1,347 | 1,248 | 1,250 | 1,241 | 1,217 | 1,295 | 1,386 | 1,379 | 1,384 | 1,324 | 1,217 | 1,136 | 1,024 | 956 | 925 | 857 | 841 | 861 | 879 | 874 |
| 構成比（%） | 8.1 | 8.1 | 8.0 | 7.9 | 7.9 | 7.8 | 7.3 | 7.3 | 7.4 | 7.3 | 7.9 | 8.5 | 8.6 | 8.8 | 8.6 | 8.1 | 7.6 | 7.0 | 6.7 | 6.5 | 6.2 | 6.3 | 6.5 | 6.8 | 6.9 |
| 60-64歳 | 1,363 | 1,393 | 1,381 | 1,380 | 1,419 | 1,401 | 1,382 | 1,376 | 1,324 | 1,305 | 1,270 | 1,173 | 1,181 | 1,165 | 1,136 | 1,222 | 1,288 | 1,291 | 1,275 | 1,246 | 1,172 | 1,100 | 1,010 | 908 | 878 |
| 構成比（%） | 7.4 | 7.7 | 7.7 | 7.8 | 8.1 | 8.1 | 8.0 | 8.0 | 7.9 | 7.9 | 7.8 | 7.2 | 7.4 | 7.4 | 7.4 | 8.1 | 8.7 | 8.8 | 8.9 | 8.8 | 8.5 | 8.2 | 7.7 | 7.0 | 7.0 |
| 65-69歳 | 1,183 | 1,248 | 1,225 | 1,255 | 1,243 | 1,273 | 1,291 | 1,299 | 1,292 | 1,323 | 1,311 | 1,299 | 1,283 | 1,237 | 1,203 | 1,175 | 1,084 | 1,105 | 1,099 | 1,078 | 1,133 | 1,190 | 1,203 | 1,217 | 1,163 |
| 構成比（%） | 6.5 | 6.9 | 6.8 | 7.1 | 7.1 | 7.4 | 7.5 | 7.6 | 7.7 | 8.0 | 8.0 | 7.9 | 8.0 | 7.8 | 7.8 | 7.8 | 7.3 | 7.6 | 7.7 | 7.6 | 8.2 | 8.9 | 9.1 | 9.4 | 9.2 |
| 70-74歳 | 855 | 850 | 939 | 970 | 1,024 | 1,027 | 1,088 | 1,098 | 1,119 | 1,111 | 1,141 | 1,152 | 1,147 | 1,160 | 1,184 | 1,177 | 1,164 | 1,152 | 1,106 | 1,092 | 1,060 | 993 | 969 | 961 | 980 |
| 構成比（%） | 4.7 | 4.7 | 5.2 | 5.5 | 5.8 | 5.9 | 6.3 | 6.4 | 6.6 | 6.7 | 7.0 | 7.0 | 7.1 | 7.4 | 7.7 | 7.8 | 7.8 | 7.9 | 7.7 | 7.7 | 7.7 | 7.4 | 7.4 | 7.4 | 7.8 |
| 75-79歳 | 585 | 609 | 632 | 657 | 694 | 693 | 718 | 784 | 833 | 876 | 870 | 926 | 915 | 939 | 933 | 958 | 980 | 980 | 994 | 1,006 | 1,024 | 984 | 977 | 967 | 932 |
| 構成比（%） | 3.2 | 3.4 | 3.5 | 3.7 | 3.9 | 4.0 | 4.2 | 4.6 | 4.9 | 5.3 | 5.3 | 5.7 | 5.7 | 6.0 | 6.0 | 6.4 | 6.6 | 6.7 | 6.9 | 7.1 | 7.4 | 7.3 | 7.4 | 7.5 | 7.4 |
| 80歳以上 | 615 | 618 | 661 | 694 | 712 | 746 | 781 | 817 | 853 | 914 | 948 | 989 | 1,077 | 1,126 | 1,185 | 1,194 | 1,245 | 1,264 | 1,307 | 1,313 | 1,317 | 1,370 | 1,389 | 1,445 | 1,491 |
| 構成比（%） | 3.4 | 3.4 | 3.7 | 3.9 | 4.0 | 4.3 | 4.5 | 4.8 | 5.1 | 5.5 | 5.8 | 6.0 | 6.7 | 7.1 | 7.7 | 7.9 | 8.4 | 8.7 | 9.1 | 9.3 | 9.6 | 10.2 | 10.5 | 11.2 | 11.8 |
人口増加都市
