高知県土佐市| 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 | 1,164 | 1,162 | 1,163 | 1,154 | 1,144 | 1,134 | 1,163 | 1,211 | 1,213 | 1,185 | 1,150 | 1,103 | 1,020 | 993 | 1,020 | 982 | 980 | 972 | 945 | 908 | 910 | 914 | 913 | 913 | 872 |
| 構成比（%） | 3.7 | 3.7 | 3.7 | 3.7 | 3.7 | 3.6 | 3.7 | 3.9 | 3.9 | 3.9 | 3.8 | 3.7 | 3.4 | 3.3 | 3.5 | 3.4 | 3.4 | 3.4 | 3.3 | 3.2 | 3.2 | 3.3 | 3.3 | 3.3 | 3.2 |
| 5-9歳 | 1,517 | 1,424 | 1,378 | 1,310 | 1,268 | 1,261 | 1,243 | 1,220 | 1,231 | 1,214 | 1,231 | 1,222 | 1,272 | 1,260 | 1,221 | 1,187 | 1,164 | 1,094 | 1,055 | 1,081 | 1,050 | 1,031 | 997 | 983 | 954 |
| 構成比（%） | 4.8 | 4.5 | 4.4 | 4.2 | 4.1 | 4.0 | 4.0 | 3.9 | 4.0 | 4.0 | 4.0 | 4.0 | 4.3 | 4.2 | 4.1 | 4.1 | 4.0 | 3.8 | 3.7 | 3.8 | 3.7 | 3.7 | 3.6 | 3.6 | 3.5 |
| 10-14歳 | 1,968 | 1,941 | 1,828 | 1,758 | 1,669 | 1,539 | 1,435 | 1,385 | 1,299 | 1,270 | 1,255 | 1,255 | 1,234 | 1,253 | 1,233 | 1,242 | 1,249 | 1,300 | 1,297 | 1,289 | 1,224 | 1,183 | 1,132 | 1,077 | 1,089 |
| 構成比（%） | 6.2 | 6.1 | 5.8 | 5.6 | 5.3 | 4.9 | 4.6 | 4.5 | 4.2 | 4.1 | 4.1 | 4.2 | 4.1 | 4.2 | 4.2 | 4.3 | 4.3 | 4.5 | 4.5 | 4.5 | 4.3 | 4.2 | 4.1 | 3.9 | 4.0 |
| 15-19歳 | 2,049 | 1,963 | 1,931 | 1,886 | 1,848 | 1,828 | 1,797 | 1,695 | 1,645 | 1,575 | 1,451 | 1,366 | 1,315 | 1,233 | 1,209 | 1,194 | 1,201 | 1,181 | 1,212 | 1,353 | 1,350 | 1,381 | 1,389 | 1,426 | 1,373 |
| 構成比（%） | 6.5 | 6.2 | 6.1 | 6.0 | 5.9 | 5.9 | 5.8 | 5.5 | 5.3 | 5.1 | 4.8 | 4.5 | 4.4 | 4.2 | 4.1 | 4.1 | 4.1 | 4.1 | 4.2 | 4.7 | 4.8 | 4.9 | 5.0 | 5.2 | 5.1 |
| 20-24歳 | 1,914 | 1,908 | 1,875 | 1,820 | 1,793 | 1,698 | 1,652 | 1,629 | 1,567 | 1,556 | 1,531 | 1,503 | 1,430 | 1,355 | 1,283 | 1,182 | 1,156 | 1,115 | 1,084 | 1,078 | 1,061 | 1,048 | 1,054 | 1,022 | 1,028 |
| 構成比（%） | 6.0 | 6.0 | 5.9 | 5.8 | 5.7 | 5.4 | 5.3 | 5.3 | 5.1 | 5.1 | 5.0 | 5.0 | 4.8 | 4.6 | 4.4 | 4.1 | 4.0 | 3.9 | 3.8 | 3.8 | 3.7 | 3.7 | 3.8 | 3.7 | 3.8 |
| 25-29歳 | 1,515 | 1,549 | 1,681 | 1,671 | 1,721 | 1,867 | 1,888 | 1,867 | 1,837 | 1,736 | 1,647 | 1,553 | 1,504 | 1,498 | 1,439 | 1,387 | 1,373 | 1,303 | 1,248 | 1,192 | 1,155 | 1,092 | 1,033 | 970 | 916 |
| 構成比（%） | 4.8 | 4.9 | 5.3 | 5.3 | 5.5 | 6.0 | 6.1 | 6.0 | 6.0 | 5.7 | 5.4 | 5.1 | 5.0 | 5.0 | 4.9 | 4.8 | 4.7 | 4.5 | 4.4 | 4.2 | 4.1 | 3.9 | 3.7 | 3.5 | 3.4 |
| 30-34歳 | 1,475 | 1,536 | 1,502 | 1,535 | 1,558 | 1,564 | 1,601 | 1,680 | 1,693 | 1,760 | 1,852 | 1,870 | 1,841 | 1,757 | 1,689 | 1,603 | 1,529 | 1,500 | 1,463 | 1,427 | 1,429 | 1,381 | 1,319 | 1,265 | 1,207 |
| 構成比（%） | 4.6 | 4.8 | 4.8 | 4.9 | 5.0 | 5.0 | 5.2 | 5.4 | 5.5 | 5.7 | 6.1 | 6.2 | 6.2 | 5.9 | 5.7 | 5.5 | 5.3 | 5.2 | 5.1 | 5.0 | 5.0 | 4.9 | 4.7 | 4.6 | 4.4 |
| 35-39歳 | 1,849 | 1,713 | 1,658 | 1,629 | 1,568 | 1,514 | 1,537 | 1,506 | 1,532 | 1,591 | 1,608 | 1,633 | 1,693 | 1,724 | 1,743 | 1,828 | 1,833 | 1,854 | 1,795 | 1,766 | 1,652 | 1,587 | 1,552 | 1,496 | 1,473 |
| 構成比（%） | 5.8 | 5.4 | 5.2 | 5.2 | 5.0 | 4.9 | 5.0 | 4.9 | 5.0 | 5.2 | 5.3 | 5.4 | 5.7 | 5.8 | 5.9 | 6.3 | 6.3 | 6.4 | 6.3 | 6.2 | 5.8 | 5.7 | 5.6 | 5.4 | 5.4 |
| 40-44歳 | 2,362 | 2,221 | 2,079 | 2,000 | 1,978 | 1,878 | 1,722 | 1,667 | 1,632 | 1,551 | 1,535 | 1,548 | 1,503 | 1,535 | 1,584 | 1,591 | 1,636 | 1,710 | 1,746 | 1,783 | 1,846 | 1,867 | 1,877 | 1,824 | 1,760 |
| 構成比（%） | 7.4 | 7.0 | 6.6 | 6.4 | 6.3 | 6.0 | 5.5 | 5.4 | 5.3 | 5.1 | 5.0 | 5.1 | 5.0 | 5.2 | 5.4 | 5.5 | 5.6 | 5.9 | 6.1 | 6.2 | 6.5 | 6.7 | 6.8 | 6.6 | 6.5 |
| 45-49歳 | 2,780 | 3,013 | 2,961 | 2,805 | 2,548 | 2,345 | 2,208 | 2,078 | 1,989 | 1,955 | 1,863 | 1,701 | 1,661 | 1,622 | 1,542 | 1,523 | 1,526 | 1,485 | 1,528 | 1,558 | 1,591 | 1,584 | 1,725 | 1,753 | 1,758 |
| 構成比（%） | 8.8 | 9.5 | 9.4 | 8.9 | 8.1 | 7.5 | 7.1 | 6.7 | 6.5 | 6.4 | 6.1 | 5.6 | 5.6 | 5.5 | 5.2 | 5.2 | 5.3 | 5.2 | 5.3 | 5.4 | 5.6 | 5.6 | 6.2 | 6.4 | 6.5 |
| 50-54歳 | 2,329 | 2,275 | 2,326 | 2,443 | 2,616 | 2,778 | 2,983 | 2,966 | 2,790 | 2,530 | 2,336 | 2,186 | 2,035 | 1,947 | 1,926 | 1,846 | 1,712 | 1,659 | 1,629 | 1,569 | 1,523 | 1,531 | 1,460 | 1,524 | 1,548 |
| 構成比（%） | 7.3 | 7.2 | 7.4 | 7.8 | 8.4 | 8.9 | 9.6 | 9.6 | 9.1 | 8.3 | 7.7 | 7.2 | 6.8 | 6.6 | 6.5 | 6.3 | 5.9 | 5.8 | 5.7 | 5.5 | 5.4 | 5.5 | 5.3 | 5.5 | 5.7 |
| 55-59歳 | 1,926 | 1,911 | 2,009 | 2,113 | 2,222 | 2,338 | 2,275 | 2,318 | 2,447 | 2,625 | 2,768 | 2,972 | 2,927 | 2,761 | 2,508 | 2,293 | 2,151 | 2,009 | 1,910 | 1,909 | 1,855 | 1,735 | 1,632 | 1,577 | 1,547 |
| 構成比（%） | 6.1 | 6.0 | 6.4 | 6.7 | 7.1 | 7.5 | 7.3 | 7.5 | 8.0 | 8.6 | 9.1 | 9.8 | 9.8 | 9.3 | 8.5 | 7.9 | 7.4 | 7.0 | 6.7 | 6.7 | 6.5 | 6.2 | 5.9 | 5.7 | 5.7 |
| 60-64歳 | 2,135 | 2,130 | 2,096 | 1,981 | 1,935 | 1,897 | 1,883 | 1,998 | 2,112 | 2,208 | 2,319 | 2,279 | 2,310 | 2,431 | 2,583 | 2,725 | 2,892 | 2,873 | 2,712 | 2,518 | 2,247 | 2,105 | 1,991 | 1,876 | 1,859 |
| 構成比（%） | 6.7 | 6.7 | 6.6 | 6.3 | 6.2 | 6.1 | 6.1 | 6.5 | 6.9 | 7.2 | 7.6 | 7.5 | 7.7 | 8.2 | 8.8 | 9.3 | 10.0 | 10.0 | 9.5 | 8.8 | 7.9 | 7.5 | 7.2 | 6.8 | 6.8 |
| 65-69歳 | 2,176 | 2,192 | 2,132 | 2,181 | 2,134 | 2,087 | 2,059 | 2,004 | 1,890 | 1,870 | 1,819 | 1,822 | 1,936 | 2,027 | 2,133 | 2,238 | 2,181 | 2,212 | 2,321 | 2,472 | 2,595 | 2,742 | 2,783 | 2,638 | 2,387 |
| 構成比（%） | 6.9 | 6.9 | 6.7 | 6.9 | 6.8 | 6.7 | 6.6 | 6.5 | 6.1 | 6.1 | 6.0 | 6.0 | 6.5 | 6.8 | 7.2 | 7.7 | 7.5 | 7.7 | 8.1 | 8.6 | 9.2 | 9.8 | 10.0 | 9.6 | 8.8 |
| 70-74歳 | 1,797 | 1,846 | 1,948 | 1,969 | 1,980 | 1,981 | 2,009 | 1,970 | 2,028 | 2,001 | 1,935 | 1,903 | 1,874 | 1,782 | 1,745 | 1,699 | 1,708 | 1,789 | 1,881 | 1,951 | 2,089 | 2,076 | 2,057 | 2,167 | 2,340 |
| 構成比（%） | 5.7 | 5.8 | 6.2 | 6.3 | 6.3 | 6.4 | 6.5 | 6.4 | 6.6 | 6.5 | 6.4 | 6.3 | 6.3 | 6.0 | 5.9 | 5.8 | 5.9 | 6.2 | 6.6 | 6.8 | 7.4 | 7.4 | 7.4 | 7.9 | 8.6 |
| 75-79歳 | 1,245 | 1,287 | 1,345 | 1,431 | 1,525 | 1,611 | 1,644 | 1,713 | 1,715 | 1,721 | 1,740 | 1,782 | 1,755 | 1,792 | 1,763 | 1,733 | 1,709 | 1,683 | 1,593 | 1,556 | 1,521 | 1,523 | 1,630 | 1,714 | 1,780 |
| 構成比（%） | 3.9 | 4.1 | 4.3 | 4.5 | 4.9 | 5.2 | 5.3 | 5.5 | 5.6 | 5.6 | 5.7 | 5.9 | 5.9 | 6.0 | 6.0 | 5.9 | 5.9 | 5.8 | 5.6 | 5.4 | 5.4 | 5.4 | 5.9 | 6.2 | 6.6 |
| 80歳以上 | 1,553 | 1,643 | 1,703 | 1,765 | 1,796 | 1,846 | 1,935 | 2,030 | 2,146 | 2,300 | 2,427 | 2,512 | 2,611 | 2,699 | 2,805 | 2,900 | 2,982 | 3,068 | 3,151 | 3,194 | 3,233 | 3,283 | 3,259 | 3,267 | 3,267 |
| 構成比（%） | 4.9 | 5.2 | 5.4 | 5.6 | 5.7 | 5.9 | 6.2 | 6.6 | 7.0 | 7.5 | 8.0 | 8.3 | 8.7 | 9.1 | 9.5 | 9.9 | 10.3 | 10.7 | 11.0 | 11.2 | 11.4 | 11.7 | 11.7 | 11.9 | 12.0 |
人口増加都市
