北海道室蘭市| 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 | 4,126 | 4,054 | 4,035 | 3,978 | 3,895 | 3,930 | 3,883 | 3,882 | 3,868 | 3,778 | 3,667 | 3,600 | 3,459 | 3,367 | 3,310 | 3,232 | 3,200 | 3,152 | 3,088 | 2,986 | 2,869 | 2,880 | 2,726 | 2,627 | 2,528 |
| 構成比（%） | 3.7 | 3.7 | 3.7 | 3.7 | 3.7 | 3.8 | 3.8 | 3.8 | 3.8 | 3.8 | 3.7 | 3.6 | 3.5 | 3.5 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | 3.3 | 3.2 | 3.2 | 3.1 | 3.1 | 3.0 |
| 5-9歳 | 4,687 | 4,459 | 4,264 | 4,141 | 4,068 | 4,043 | 3,944 | 3,914 | 3,853 | 3,842 | 3,845 | 3,821 | 3,770 | 3,804 | 3,762 | 3,680 | 3,624 | 3,428 | 3,287 | 3,175 | 3,025 | 2,972 | 2,939 | 2,916 | 2,785 |
| 構成比（%） | 4.2 | 4.1 | 4.0 | 3.9 | 3.9 | 3.9 | 3.8 | 3.8 | 3.8 | 3.8 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.8 | 3.7 | 3.6 | 3.5 | 3.4 | 3.4 | 3.4 | 3.4 | 3.3 |
| 10-14歳 | 6,133 | 5,710 | 5,310 | 4,957 | 4,596 | 4,345 | 4,188 | 4,023 | 3,922 | 3,895 | 3,815 | 3,791 | 3,798 | 3,737 | 3,759 | 3,769 | 3,671 | 3,664 | 3,695 | 3,659 | 3,581 | 3,460 | 3,346 | 3,179 | 3,034 |
| 構成比（%） | 5.5 | 5.2 | 4.9 | 4.6 | 4.4 | 4.2 | 4.1 | 3.9 | 3.9 | 3.9 | 3.8 | 3.8 | 3.9 | 3.9 | 3.9 | 4.0 | 3.9 | 3.9 | 4.0 | 4.0 | 4.0 | 3.9 | 3.8 | 3.7 | 3.6 |
| 15-19歳 | 7,550 | 7,064 | 6,641 | 6,233 | 5,955 | 5,663 | 5,348 | 5,008 | 4,691 | 4,392 | 4,266 | 4,230 | 4,025 | 3,997 | 4,008 | 3,886 | 3,876 | 3,869 | 3,788 | 3,808 | 3,715 | 3,711 | 3,668 | 3,693 | 3,654 |
| 構成比（%） | 6.8 | 6.4 | 6.2 | 5.8 | 5.6 | 5.4 | 5.2 | 4.9 | 4.6 | 4.4 | 4.3 | 4.3 | 4.1 | 4.1 | 4.2 | 4.1 | 4.1 | 4.2 | 4.1 | 4.2 | 4.1 | 4.2 | 4.2 | 4.3 | 4.3 |
| 20-24歳 | 8,112 | 8,094 | 7,798 | 7,441 | 7,002 | 6,553 | 6,149 | 5,789 | 5,538 | 5,436 | 5,295 | 5,222 | 4,959 | 4,780 | 4,686 | 4,666 | 4,601 | 4,425 | 4,386 | 4,395 | 4,304 | 4,213 | 4,120 | 4,026 | 4,055 |
| 構成比（%） | 7.3 | 7.4 | 7.2 | 7.0 | 6.6 | 6.3 | 6.0 | 5.7 | 5.5 | 5.4 | 5.3 | 5.3 | 5.1 | 4.9 | 4.9 | 4.9 | 4.9 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.7 | 4.7 | 4.8 |
| 25-29歳 | 5,856 | 5,923 | 6,215 | 6,397 | 6,615 | 6,763 | 6,719 | 6,522 | 6,156 | 5,683 | 5,251 | 4,926 | 4,719 | 4,583 | 4,531 | 4,466 | 4,379 | 4,276 | 4,114 | 4,067 | 3,933 | 3,826 | 3,716 | 3,645 | 3,507 |
| 構成比（%） | 5.3 | 5.4 | 5.8 | 6.0 | 6.3 | 6.5 | 6.5 | 6.4 | 6.1 | 5.7 | 5.3 | 5.0 | 4.8 | 4.7 | 4.7 | 4.7 | 4.6 | 4.6 | 4.5 | 4.5 | 4.4 | 4.3 | 4.3 | 4.2 | 4.2 |
| 30-34歳 | 5,563 | 5,566 | 5,374 | 5,467 | 5,519 | 5,612 | 5,651 | 5,940 | 6,161 | 6,322 | 6,412 | 6,459 | 6,244 | 5,920 | 5,519 | 5,074 | 4,835 | 4,635 | 4,446 | 4,383 | 4,281 | 4,190 | 3,942 | 3,826 | 3,648 |
| 構成比（%） | 5.0 | 5.1 | 5.0 | 5.1 | 5.2 | 5.4 | 5.5 | 5.8 | 6.1 | 6.3 | 6.5 | 6.5 | 6.4 | 6.1 | 5.7 | 5.3 | 5.1 | 5.0 | 4.8 | 4.8 | 4.8 | 4.7 | 4.5 | 4.5 | 4.3 |
| 35-39歳 | 5,989 | 5,748 | 5,515 | 5,478 | 5,357 | 5,344 | 5,337 | 5,271 | 5,292 | 5,349 | 5,403 | 5,501 | 5,828 | 6,074 | 6,247 | 6,415 | 6,301 | 6,057 | 5,742 | 5,489 | 4,980 | 4,675 | 4,487 | 4,285 | 4,117 |
| 構成比（%） | 5.4 | 5.2 | 5.1 | 5.1 | 5.1 | 5.1 | 5.2 | 5.2 | 5.2 | 5.3 | 5.5 | 5.6 | 6.0 | 6.3 | 6.5 | 6.7 | 6.7 | 6.5 | 6.2 | 6.0 | 5.5 | 5.3 | 5.1 | 5.0 | 4.9 |
| 40-44歳 | 8,627 | 7,716 | 6,981 | 6,312 | 5,962 | 5,650 | 5,402 | 5,247 | 5,247 | 5,166 | 5,173 | 5,229 | 5,150 | 5,162 | 5,301 | 5,369 | 5,441 | 5,712 | 5,912 | 6,016 | 6,114 | 6,147 | 5,928 | 5,639 | 5,268 |
| 構成比（%） | 7.8 | 7.0 | 6.5 | 5.9 | 5.7 | 5.4 | 5.2 | 5.1 | 5.2 | 5.2 | 5.2 | 5.3 | 5.3 | 5.3 | 5.5 | 5.6 | 5.8 | 6.1 | 6.4 | 6.6 | 6.8 | 6.9 | 6.8 | 6.6 | 6.2 |
| 45-49歳 | 9,823 | 10,292 | 10,330 | 9,761 | 9,128 | 8,169 | 7,316 | 6,632 | 6,082 | 5,737 | 5,404 | 5,287 | 5,089 | 5,086 | 4,989 | 5,014 | 5,068 | 4,998 | 5,042 | 5,102 | 5,215 | 5,161 | 5,521 | 5,632 | 5,821 |
| 構成比（%） | 8.8 | 9.4 | 9.6 | 9.1 | 8.7 | 7.8 | 7.1 | 6.5 | 6.0 | 5.7 | 5.5 | 5.4 | 5.2 | 5.3 | 5.2 | 5.3 | 5.4 | 5.4 | 5.5 | 5.6 | 5.8 | 5.8 | 6.3 | 6.6 | 6.9 |
| 50-54歳 | 9,523 | 8,999 | 8,560 | 8,762 | 8,781 | 9,352 | 9,801 | 9,803 | 9,264 | 8,699 | 7,808 | 7,050 | 6,439 | 5,879 | 5,572 | 5,250 | 5,074 | 4,948 | 4,967 | 4,929 | 4,870 | 5,039 | 4,894 | 4,924 | 4,964 |
| 構成比（%） | 8.6 | 8.2 | 7.9 | 8.2 | 8.3 | 8.9 | 9.5 | 9.6 | 9.2 | 8.7 | 7.9 | 7.1 | 6.6 | 6.1 | 5.8 | 5.5 | 5.4 | 5.3 | 5.4 | 5.4 | 5.4 | 5.7 | 5.6 | 5.7 | 5.9 |
| 55-59歳 | 8,653 | 8,714 | 9,007 | 8,965 | 9,177 | 9,036 | 8,557 | 8,188 | 8,393 | 8,409 | 8,947 | 9,469 | 9,502 | 9,004 | 8,438 | 7,546 | 6,841 | 6,222 | 5,655 | 5,439 | 5,157 | 4,902 | 4,768 | 4,756 | 4,731 |
| 構成比（%） | 7.8 | 8.0 | 8.3 | 8.4 | 8.7 | 8.6 | 8.3 | 8.0 | 8.3 | 8.4 | 9.0 | 9.6 | 9.7 | 9.3 | 8.8 | 7.9 | 7.3 | 6.7 | 6.1 | 6.0 | 5.7 | 5.5 | 5.5 | 5.5 | 5.6 |
| 60-64歳 | 8,063 | 8,131 | 8,172 | 8,316 | 8,216 | 8,102 | 8,229 | 8,560 | 8,506 | 8,709 | 8,594 | 8,167 | 7,818 | 7,988 | 8,046 | 8,608 | 9,038 | 9,091 | 8,622 | 8,277 | 7,448 | 6,671 | 6,068 | 5,469 | 5,121 |
| 構成比（%） | 7.3 | 7.4 | 7.6 | 7.8 | 7.8 | 7.7 | 8.0 | 8.4 | 8.4 | 8.7 | 8.7 | 8.3 | 8.0 | 8.3 | 8.4 | 9.0 | 9.6 | 9.8 | 9.4 | 9.1 | 8.3 | 7.5 | 7.0 | 6.4 | 6.1 |
| 65-69歳 | 6,530 | 6,723 | 6,871 | 7,080 | 7,201 | 7,407 | 7,505 | 7,572 | 7,760 | 7,676 | 7,600 | 7,722 | 7,990 | 7,949 | 8,140 | 8,030 | 7,635 | 7,313 | 7,514 | 7,511 | 7,988 | 8,457 | 8,597 | 8,310 | 7,772 |
| 構成比（%） | 5.9 | 6.1 | 6.4 | 6.6 | 6.8 | 7.1 | 7.3 | 7.4 | 7.7 | 7.7 | 7.7 | 7.8 | 8.2 | 8.2 | 8.5 | 8.4 | 8.1 | 7.9 | 8.2 | 8.2 | 8.9 | 9.5 | 9.9 | 9.7 | 9.2 |
| 70-74歳 | 4,947 | 5,062 | 5,278 | 5,436 | 5,680 | 5,866 | 6,064 | 6,169 | 6,400 | 6,523 | 6,703 | 6,823 | 6,878 | 7,057 | 6,986 | 6,935 | 7,027 | 7,307 | 7,304 | 7,468 | 7,501 | 7,124 | 6,752 | 6,815 | 6,953 |
| 構成比（%） | 4.5 | 4.6 | 4.9 | 5.1 | 5.4 | 5.6 | 5.9 | 6.0 | 6.3 | 6.5 | 6.8 | 6.9 | 7.1 | 7.3 | 7.3 | 7.3 | 7.5 | 7.9 | 7.9 | 8.2 | 8.4 | 8.0 | 7.7 | 7.9 | 8.2 |
| 75-79歳 | 3,502 | 3,671 | 3,765 | 3,865 | 4,015 | 4,193 | 4,328 | 4,465 | 4,621 | 4,862 | 5,012 | 5,161 | 5,319 | 5,513 | 5,618 | 5,832 | 5,932 | 6,014 | 6,190 | 6,134 | 6,085 | 6,102 | 6,395 | 6,479 | 6,611 |
| 構成比（%） | 3.2 | 3.4 | 3.5 | 3.6 | 3.8 | 4.0 | 4.2 | 4.4 | 4.6 | 4.9 | 5.1 | 5.2 | 5.5 | 5.7 | 5.8 | 6.1 | 6.3 | 6.5 | 6.7 | 6.7 | 6.8 | 6.9 | 7.3 | 7.6 | 7.8 |
| 80歳以上 | 3,372 | 3,616 | 3,830 | 4,112 | 4,297 | 4,530 | 4,880 | 5,171 | 5,384 | 5,643 | 5,918 | 6,228 | 6,530 | 6,824 | 7,138 | 7,378 | 7,673 | 7,967 | 8,235 | 8,438 | 8,733 | 9,088 | 9,313 | 9,586 | 9,836 |
| 構成比（%） | 3.0 | 3.3 | 3.5 | 3.9 | 4.1 | 4.3 | 4.7 | 5.1 | 5.3 | 5.6 | 6.0 | 6.3 | 6.7 | 7.1 | 7.4 | 7.8 | 8.1 | 8.6 | 9.0 | 9.2 | 9.7 | 10.3 | 10.7 | 11.2 | 11.7 |
人口増加都市
