長崎県西海市| 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 | 1,818 | 1,733 | 1,722 | 1,620 | 1,550 | 1,538 | 1,538 | 1,520 | 1,497 | 1,422 | 1,312 | 1,274 | 1,157 | 1,126 | 1,070 | 1,071 | 1,103 | 1,112 | 1,136 | 1,124 | 1,112 | 1,034 | 1,020 | 980 | 929 |
| 構成比（%） | 4.9 | 4.7 | 4.7 | 4.5 | 4.3 | 4.3 | 4.3 | 4.3 | 4.2 | 4.1 | 3.8 | 3.7 | 3.4 | 3.4 | 3.3 | 3.4 | 3.5 | 3.6 | 3.7 | 3.7 | 3.7 | 3.5 | 3.5 | 3.4 | 3.3 |
| 5-9歳 | 2,193 | 2,136 | 1,998 | 1,907 | 1,857 | 1,823 | 1,760 | 1,785 | 1,716 | 1,622 | 1,589 | 1,518 | 1,489 | 1,400 | 1,349 | 1,240 | 1,170 | 1,095 | 1,085 | 1,104 | 1,079 | 1,127 | 1,099 | 1,090 | 1,077 |
| 構成比（%） | 5.9 | 5.8 | 5.5 | 5.3 | 5.2 | 5.1 | 4.9 | 5.0 | 4.8 | 4.6 | 4.6 | 4.5 | 4.4 | 4.3 | 4.2 | 3.9 | 3.7 | 3.5 | 3.5 | 3.6 | 3.6 | 3.8 | 3.8 | 3.8 | 3.8 |
| 10-14歳 | 2,379 | 2,318 | 2,332 | 2,269 | 2,221 | 2,139 | 2,033 | 1,989 | 1,907 | 1,854 | 1,814 | 1,727 | 1,725 | 1,648 | 1,540 | 1,512 | 1,433 | 1,409 | 1,336 | 1,312 | 1,238 | 1,162 | 1,073 | 1,028 | 1,036 |
| 構成比（%） | 6.4 | 6.3 | 6.4 | 6.3 | 6.2 | 6.0 | 5.7 | 5.6 | 5.4 | 5.3 | 5.3 | 5.1 | 5.1 | 5.0 | 4.8 | 4.7 | 4.6 | 4.5 | 4.3 | 4.3 | 4.1 | 3.9 | 3.7 | 3.6 | 3.7 |
| 15-19歳 | 2,251 | 2,176 | 2,084 | 2,063 | 2,036 | 2,083 | 2,106 | 2,038 | 2,035 | 1,976 | 1,887 | 1,884 | 1,725 | 1,651 | 1,626 | 1,610 | 1,525 | 1,516 | 1,465 | 1,402 | 1,360 | 1,299 | 1,287 | 1,257 | 1,155 |
| 構成比（%） | 6.1 | 5.9 | 5.7 | 5.7 | 5.7 | 5.8 | 5.9 | 5.7 | 5.7 | 5.7 | 5.5 | 5.5 | 5.1 | 5.0 | 5.0 | 5.0 | 4.9 | 4.9 | 4.7 | 4.6 | 4.5 | 4.4 | 4.4 | 4.4 | 4.1 |
| 20-24歳 | 1,670 | 1,718 | 1,776 | 1,758 | 1,726 | 1,687 | 1,613 | 1,560 | 1,589 | 1,587 | 1,548 | 1,493 | 1,472 | 1,425 | 1,382 | 1,325 | 1,352 | 1,250 | 1,314 | 1,333 | 1,285 | 1,233 | 1,186 | 1,149 | 1,121 |
| 構成比（%） | 4.5 | 4.7 | 4.9 | 4.9 | 4.8 | 4.7 | 4.5 | 4.4 | 4.5 | 4.5 | 4.5 | 4.4 | 4.4 | 4.3 | 4.3 | 4.2 | 4.3 | 4.0 | 4.3 | 4.4 | 4.3 | 4.2 | 4.1 | 4.0 | 4.0 |
| 25-29歳 | 1,443 | 1,455 | 1,520 | 1,579 | 1,594 | 1,669 | 1,745 | 1,759 | 1,742 | 1,670 | 1,603 | 1,486 | 1,397 | 1,368 | 1,329 | 1,286 | 1,281 | 1,268 | 1,299 | 1,298 | 1,268 | 1,274 | 1,219 | 1,166 | 1,143 |
| 構成比（%） | 3.9 | 4.0 | 4.2 | 4.4 | 4.4 | 4.7 | 4.9 | 4.9 | 4.9 | 4.8 | 4.6 | 4.4 | 4.2 | 4.2 | 4.1 | 4.0 | 4.1 | 4.1 | 4.2 | 4.3 | 4.2 | 4.3 | 4.2 | 4.1 | 4.1 |
| 30-34歳 | 1,967 | 1,859 | 1,662 | 1,580 | 1,531 | 1,438 | 1,448 | 1,537 | 1,596 | 1,608 | 1,676 | 1,716 | 1,702 | 1,608 | 1,516 | 1,486 | 1,385 | 1,341 | 1,404 | 1,359 | 1,285 | 1,298 | 1,304 | 1,225 | 1,209 |
| 構成比（%） | 5.3 | 5.1 | 4.6 | 4.4 | 4.3 | 4.0 | 4.1 | 4.3 | 4.5 | 4.6 | 4.9 | 5.0 | 5.1 | 4.9 | 4.7 | 4.7 | 4.4 | 4.3 | 4.6 | 4.5 | 4.3 | 4.4 | 4.5 | 4.3 | 4.3 |
| 35-39歳 | 2,269 | 2,141 | 2,062 | 1,999 | 1,951 | 1,919 | 1,859 | 1,702 | 1,623 | 1,572 | 1,496 | 1,470 | 1,544 | 1,538 | 1,540 | 1,573 | 1,560 | 1,548 | 1,551 | 1,496 | 1,455 | 1,419 | 1,365 | 1,343 | 1,336 |
| 構成比（%） | 6.1 | 5.8 | 5.7 | 5.5 | 5.4 | 5.4 | 5.2 | 4.8 | 4.6 | 4.5 | 4.3 | 4.3 | 4.6 | 4.7 | 4.8 | 4.9 | 5.0 | 5.0 | 5.0 | 4.9 | 4.9 | 4.8 | 4.7 | 4.7 | 4.8 |
| 40-44歳 | 2,648 | 2,583 | 2,554 | 2,410 | 2,340 | 2,227 | 2,117 | 2,055 | 2,016 | 1,953 | 1,914 | 1,861 | 1,707 | 1,598 | 1,552 | 1,467 | 1,457 | 1,522 | 1,530 | 1,549 | 1,559 | 1,513 | 1,497 | 1,478 | 1,415 |
| 構成比（%） | 7.1 | 7.0 | 7.0 | 6.7 | 6.5 | 6.2 | 5.9 | 5.8 | 5.7 | 5.6 | 5.5 | 5.5 | 5.1 | 4.9 | 4.8 | 4.6 | 4.6 | 4.9 | 5.0 | 5.1 | 5.2 | 5.1 | 5.2 | 5.2 | 5.1 |
| 45-49歳 | 2,133 | 2,772 | 2,797 | 2,806 | 2,733 | 2,647 | 2,616 | 2,586 | 2,471 | 2,393 | 2,252 | 2,118 | 2,032 | 1,979 | 1,931 | 1,888 | 1,842 | 1,681 | 1,587 | 1,532 | 1,466 | 1,415 | 1,504 | 1,497 | 1,489 |
| 構成比（%） | 5.7 | 7.5 | 7.7 | 7.8 | 7.6 | 7.4 | 7.3 | 7.3 | 7.0 | 6.8 | 6.5 | 6.2 | 6.1 | 6.0 | 6.0 | 5.9 | 5.9 | 5.4 | 5.1 | 5.0 | 4.9 | 4.8 | 5.2 | 5.3 | 5.3 |
| 50-54歳 | 2,520 | 1,931 | 1,950 | 2,095 | 2,305 | 2,497 | 2,792 | 2,882 | 2,873 | 2,771 | 2,681 | 2,643 | 2,562 | 2,416 | 2,324 | 2,204 | 2,084 | 2,011 | 1,971 | 1,944 | 1,915 | 1,873 | 1,695 | 1,599 | 1,518 |
| 構成比（%） | 6.8 | 5.3 | 5.3 | 5.8 | 6.4 | 7.0 | 7.8 | 8.1 | 8.1 | 7.9 | 7.8 | 7.8 | 7.6 | 7.3 | 7.2 | 6.9 | 6.6 | 6.5 | 6.4 | 6.4 | 6.4 | 6.4 | 5.8 | 5.6 | 5.4 |
| 55-59歳 | 2,796 | 2,443 | 2,375 | 2,238 | 2,172 | 2,126 | 1,925 | 1,966 | 2,137 | 2,337 | 2,517 | 2,813 | 2,850 | 2,844 | 2,741 | 2,616 | 2,547 | 2,480 | 2,373 | 2,324 | 2,147 | 2,051 | 1,985 | 1,940 | 1,926 |
| 構成比（%） | 7.5 | 6.6 | 6.5 | 6.2 | 6.0 | 5.9 | 5.4 | 5.5 | 6.0 | 6.7 | 7.3 | 8.3 | 8.5 | 8.6 | 8.5 | 8.2 | 8.1 | 8.0 | 7.7 | 7.6 | 7.2 | 7.0 | 6.8 | 6.8 | 6.9 |
| 60-64歳 | 2,817 | 2,714 | 2,625 | 2,591 | 2,507 | 2,452 | 2,376 | 2,322 | 2,203 | 2,146 | 2,119 | 1,912 | 1,947 | 2,078 | 2,266 | 2,442 | 2,737 | 2,778 | 2,745 | 2,679 | 2,616 | 2,516 | 2,452 | 2,343 | 2,251 |
| 構成比（%） | 7.6 | 7.4 | 7.2 | 7.2 | 7.0 | 6.9 | 6.7 | 6.5 | 6.2 | 6.1 | 6.1 | 5.6 | 5.8 | 6.3 | 7.0 | 7.7 | 8.7 | 9.0 | 8.9 | 8.8 | 8.7 | 8.5 | 8.4 | 8.2 | 8.0 |
| 65-69歳 | 2,248 | 2,822 | 2,792 | 2,787 | 2,758 | 2,681 | 2,622 | 2,543 | 2,508 | 2,426 | 2,359 | 2,287 | 2,248 | 2,139 | 2,085 | 2,045 | 1,846 | 1,880 | 2,003 | 2,138 | 2,281 | 2,537 | 2,688 | 2,654 | 2,589 |
| 構成比（%） | 6.1 | 7.7 | 7.7 | 7.7 | 7.7 | 7.5 | 7.4 | 7.1 | 7.1 | 6.9 | 6.8 | 6.7 | 6.7 | 6.5 | 6.4 | 6.4 | 5.9 | 6.1 | 6.5 | 7.0 | 7.6 | 8.6 | 9.3 | 9.3 | 9.3 |
| 70-74歳 | 1,651 | 2,340 | 2,419 | 2,462 | 2,491 | 2,589 | 2,613 | 2,634 | 2,611 | 2,581 | 2,502 | 2,453 | 2,385 | 2,357 | 2,266 | 2,217 | 2,155 | 2,105 | 1,996 | 1,932 | 1,913 | 1,766 | 1,700 | 1,851 | 2,006 |
| 構成比（%） | 4.4 | 6.4 | 6.6 | 6.8 | 6.9 | 7.2 | 7.3 | 7.4 | 7.4 | 7.4 | 7.2 | 7.2 | 7.1 | 7.2 | 7.0 | 7.0 | 6.9 | 6.8 | 6.5 | 6.3 | 6.4 | 6.0 | 5.9 | 6.5 | 7.2 |
| 75-79歳 | 1,860 | 1,704 | 1,753 | 1,852 | 1,922 | 1,908 | 2,016 | 2,092 | 2,181 | 2,220 | 2,336 | 2,350 | 2,354 | 2,345 | 2,325 | 2,259 | 2,197 | 2,123 | 2,108 | 2,041 | 1,993 | 1,943 | 1,930 | 1,815 | 1,747 |
| 構成比（%） | 5.0 | 4.6 | 4.8 | 5.1 | 5.3 | 5.3 | 5.7 | 5.9 | 6.2 | 6.3 | 6.8 | 6.9 | 7.0 | 7.1 | 7.2 | 7.1 | 7.0 | 6.8 | 6.8 | 6.7 | 6.7 | 6.6 | 6.6 | 6.4 | 6.2 |
| 80歳以上 | 2,468 | 1,931 | 2,042 | 2,159 | 2,237 | 2,356 | 2,459 | 2,614 | 2,711 | 2,831 | 2,916 | 3,080 | 3,251 | 3,403 | 3,486 | 3,648 | 3,736 | 3,887 | 3,945 | 3,951 | 3,970 | 3,998 | 4,021 | 4,072 | 4,035 |
| 構成比（%） | 6.6 | 5.3 | 5.6 | 6.0 | 6.2 | 6.6 | 6.9 | 7.3 | 7.7 | 8.1 | 8.4 | 9.0 | 9.7 | 10.3 | 10.8 | 11.4 | 11.9 | 12.5 | 12.8 | 12.9 | 13.3 | 13.6 | 13.9 | 14.3 | 14.4 |
人口増加都市
