茨城県那珂市| 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 | 2,407 | 2,383 | 2,341 | 2,342 | 2,291 | 2,324 | 2,367 | 2,372 | 2,329 | 2,374 | 2,330 | 2,280 | 2,259 | 2,268 | 2,212 | 2,145 | 2,147 | 2,087 | 2,097 | 2,027 | 2,065 | 2,045 | 1,993 | 1,988 | 1,983 |
| 構成比（%） | 4.4 | 4.3 | 4.2 | 4.2 | 4.1 | 4.1 | 4.2 | 4.2 | 4.1 | 4.2 | 4.1 | 4.0 | 4.0 | 4.0 | 3.9 | 3.8 | 3.8 | 3.7 | 3.7 | 3.6 | 3.7 | 3.7 | 3.6 | 3.6 | 3.6 |
| 5-9歳 | 3,251 | 3,166 | 3,028 | 2,885 | 2,756 | 2,749 | 2,692 | 2,678 | 2,642 | 2,573 | 2,588 | 2,583 | 2,611 | 2,576 | 2,635 | 2,559 | 2,453 | 2,449 | 2,413 | 2,348 | 2,293 | 2,358 | 2,300 | 2,244 | 2,211 |
| 構成比（%） | 5.9 | 5.7 | 5.5 | 5.2 | 4.9 | 4.9 | 4.8 | 4.7 | 4.7 | 4.5 | 4.6 | 4.6 | 4.6 | 4.6 | 4.7 | 4.6 | 4.4 | 4.4 | 4.3 | 4.2 | 4.1 | 4.2 | 4.1 | 4.1 | 4.0 |
| 10-14歳 | 3,757 | 3,744 | 3,696 | 3,662 | 3,629 | 3,449 | 3,323 | 3,174 | 3,021 | 2,917 | 2,923 | 2,839 | 2,785 | 2,768 | 2,688 | 2,688 | 2,684 | 2,700 | 2,657 | 2,669 | 2,652 | 2,503 | 2,490 | 2,472 | 2,402 |
| 構成比（%） | 6.9 | 6.8 | 6.7 | 6.6 | 6.5 | 6.2 | 5.9 | 5.6 | 5.3 | 5.2 | 5.2 | 5.0 | 4.9 | 4.9 | 4.8 | 4.8 | 4.8 | 4.8 | 4.7 | 4.8 | 4.8 | 4.5 | 4.5 | 4.5 | 4.4 |
| 15-19歳 | 4,024 | 4,022 | 3,891 | 3,804 | 3,710 | 3,658 | 3,657 | 3,613 | 3,595 | 3,539 | 3,340 | 3,257 | 3,107 | 2,936 | 2,838 | 2,844 | 2,781 | 2,726 | 2,722 | 2,685 | 2,628 | 2,653 | 2,645 | 2,642 | 2,615 |
| 構成比（%） | 7.3 | 7.3 | 7.0 | 6.8 | 6.7 | 6.5 | 6.5 | 6.4 | 6.4 | 6.3 | 5.9 | 5.8 | 5.5 | 5.2 | 5.0 | 5.1 | 5.0 | 4.9 | 4.9 | 4.8 | 4.7 | 4.8 | 4.8 | 4.8 | 4.8 |
| 20-24歳 | 3,863 | 3,842 | 3,789 | 3,719 | 3,637 | 3,529 | 3,474 | 3,393 | 3,354 | 3,288 | 3,242 | 3,247 | 3,174 | 3,146 | 3,044 | 2,855 | 2,758 | 2,643 | 2,523 | 2,513 | 2,507 | 2,423 | 2,428 | 2,357 | 2,317 |
| 構成比（%） | 7.1 | 6.9 | 6.8 | 6.7 | 6.5 | 6.3 | 6.2 | 6.0 | 5.9 | 5.8 | 5.7 | 5.7 | 5.6 | 5.6 | 5.4 | 5.1 | 4.9 | 4.7 | 4.5 | 4.5 | 4.5 | 4.4 | 4.4 | 4.3 | 4.2 |
| 25-29歳 | 3,109 | 3,232 | 3,428 | 3,571 | 3,594 | 3,780 | 3,749 | 3,713 | 3,566 | 3,501 | 3,357 | 3,277 | 3,203 | 3,118 | 2,994 | 2,943 | 2,895 | 2,807 | 2,790 | 2,799 | 2,605 | 2,516 | 2,427 | 2,383 | 2,272 |
| 構成比（%） | 5.7 | 5.8 | 6.2 | 6.4 | 6.4 | 6.7 | 6.7 | 6.6 | 6.3 | 6.2 | 5.9 | 5.8 | 5.7 | 5.5 | 5.3 | 5.2 | 5.2 | 5.0 | 5.0 | 5.0 | 4.7 | 4.5 | 4.4 | 4.3 | 4.1 |
| 30-34歳 | 2,919 | 2,985 | 2,979 | 3,063 | 3,112 | 3,147 | 3,315 | 3,528 | 3,595 | 3,673 | 3,784 | 3,727 | 3,691 | 3,566 | 3,495 | 3,364 | 3,253 | 3,205 | 3,173 | 3,080 | 3,062 | 3,000 | 2,925 | 2,906 | 2,879 |
| 構成比（%） | 5.3 | 5.4 | 5.4 | 5.5 | 5.6 | 5.6 | 5.9 | 6.2 | 6.4 | 6.5 | 6.7 | 6.6 | 6.5 | 6.3 | 6.2 | 6.0 | 5.8 | 5.7 | 5.7 | 5.5 | 5.5 | 5.4 | 5.3 | 5.3 | 5.2 |
| 35-39歳 | 3,643 | 3,470 | 3,389 | 3,324 | 3,306 | 3,279 | 3,267 | 3,190 | 3,241 | 3,308 | 3,354 | 3,486 | 3,672 | 3,781 | 3,818 | 3,905 | 3,849 | 3,771 | 3,692 | 3,638 | 3,480 | 3,423 | 3,366 | 3,270 | 3,170 |
| 構成比（%） | 6.6 | 6.3 | 6.1 | 6.0 | 5.9 | 5.9 | 5.8 | 5.6 | 5.7 | 5.8 | 5.9 | 6.2 | 6.5 | 6.7 | 6.8 | 7.0 | 6.9 | 6.8 | 6.6 | 6.5 | 6.2 | 6.2 | 6.1 | 5.9 | 5.8 |
| 40-44歳 | 4,456 | 4,335 | 4,218 | 4,043 | 3,898 | 3,761 | 3,620 | 3,513 | 3,429 | 3,410 | 3,369 | 3,368 | 3,288 | 3,345 | 3,402 | 3,470 | 3,598 | 3,800 | 3,932 | 4,006 | 4,088 | 4,003 | 3,919 | 3,815 | 3,717 |
| 構成比（%） | 8.1 | 7.8 | 7.6 | 7.3 | 7.0 | 6.7 | 6.4 | 6.2 | 6.1 | 6.0 | 6.0 | 6.0 | 5.8 | 5.9 | 6.0 | 6.2 | 6.4 | 6.8 | 7.0 | 7.2 | 7.3 | 7.2 | 7.1 | 6.9 | 6.8 |
| 45-49歳 | 4,486 | 4,886 | 5,034 | 4,881 | 4,704 | 4,557 | 4,362 | 4,228 | 4,052 | 3,913 | 3,804 | 3,658 | 3,543 | 3,459 | 3,435 | 3,380 | 3,376 | 3,285 | 3,377 | 3,407 | 3,476 | 3,591 | 3,866 | 3,924 | 4,005 |
| 構成比（%） | 8.2 | 8.8 | 9.1 | 8.8 | 8.4 | 8.1 | 7.7 | 7.5 | 7.2 | 6.9 | 6.7 | 6.5 | 6.3 | 6.1 | 6.1 | 6.0 | 6.0 | 5.9 | 6.0 | 6.1 | 6.2 | 6.5 | 7.0 | 7.1 | 7.3 |
| 50-54歳 | 4,029 | 3,877 | 3,875 | 4,119 | 4,299 | 4,520 | 4,958 | 5,081 | 4,901 | 4,706 | 4,539 | 4,336 | 4,175 | 4,023 | 3,893 | 3,761 | 3,594 | 3,507 | 3,451 | 3,454 | 3,416 | 3,478 | 3,333 | 3,366 | 3,426 |
| 構成比（%） | 7.4 | 7.0 | 7.0 | 7.4 | 7.7 | 8.1 | 8.8 | 9.0 | 8.7 | 8.3 | 8.0 | 7.7 | 7.4 | 7.1 | 6.9 | 6.7 | 6.4 | 6.3 | 6.2 | 6.2 | 6.1 | 6.2 | 6.0 | 6.1 | 6.2 |
| 55-59歳 | 3,228 | 3,348 | 3,510 | 3,659 | 3,877 | 4,039 | 3,890 | 3,876 | 4,132 | 4,326 | 4,546 | 4,961 | 5,058 | 4,847 | 4,642 | 4,458 | 4,276 | 4,138 | 4,002 | 3,918 | 3,763 | 3,619 | 3,517 | 3,493 | 3,438 |
| 構成比（%） | 5.9 | 6.1 | 6.3 | 6.6 | 7.0 | 7.2 | 6.9 | 6.9 | 7.3 | 7.6 | 8.0 | 8.8 | 9.0 | 8.6 | 8.3 | 7.9 | 7.6 | 7.4 | 7.1 | 7.0 | 6.7 | 6.5 | 6.3 | 6.3 | 6.3 |
| 60-64歳 | 3,173 | 3,222 | 3,248 | 3,257 | 3,198 | 3,227 | 3,320 | 3,479 | 3,624 | 3,851 | 3,975 | 3,840 | 3,828 | 4,076 | 4,254 | 4,481 | 4,880 | 4,990 | 4,805 | 4,684 | 4,461 | 4,281 | 4,114 | 3,990 | 3,853 |
| 構成比（%） | 5.8 | 5.8 | 5.9 | 5.8 | 5.7 | 5.8 | 5.9 | 6.2 | 6.4 | 6.8 | 7.0 | 6.8 | 6.8 | 7.2 | 7.6 | 8.0 | 8.7 | 8.9 | 8.6 | 8.4 | 8.0 | 7.7 | 7.4 | 7.2 | 7.0 |
| 65-69歳 | 2,885 | 2,960 | 2,954 | 3,025 | 3,065 | 3,056 | 3,101 | 3,122 | 3,141 | 3,104 | 3,096 | 3,179 | 3,343 | 3,511 | 3,723 | 3,858 | 3,723 | 3,717 | 3,957 | 4,084 | 4,294 | 4,625 | 4,843 | 4,684 | 4,506 |
| 構成比（%） | 5.3 | 5.4 | 5.3 | 5.4 | 5.5 | 5.5 | 5.5 | 5.5 | 5.6 | 5.5 | 5.5 | 5.6 | 5.9 | 6.2 | 6.6 | 6.9 | 6.7 | 6.7 | 7.1 | 7.3 | 7.7 | 8.3 | 8.7 | 8.5 | 8.2 |
| 70-74歳 | 2,223 | 2,290 | 2,458 | 2,570 | 2,667 | 2,693 | 2,772 | 2,769 | 2,840 | 2,866 | 2,878 | 2,910 | 2,921 | 2,954 | 2,925 | 2,950 | 3,042 | 3,208 | 3,375 | 3,543 | 3,752 | 3,604 | 3,524 | 3,679 | 3,893 |
| 構成比（%） | 4.1 | 4.1 | 4.4 | 4.6 | 4.8 | 4.8 | 4.9 | 4.9 | 5.0 | 5.1 | 5.1 | 5.1 | 5.2 | 5.2 | 5.2 | 5.3 | 5.4 | 5.7 | 6.0 | 6.3 | 6.7 | 6.5 | 6.4 | 6.7 | 7.1 |
| 75-79歳 | 1,541 | 1,623 | 1,656 | 1,744 | 1,857 | 1,999 | 2,063 | 2,240 | 2,328 | 2,391 | 2,414 | 2,463 | 2,451 | 2,520 | 2,547 | 2,589 | 2,651 | 2,689 | 2,721 | 2,709 | 2,735 | 2,829 | 2,937 | 3,075 | 3,244 |
| 構成比（%） | 2.8 | 2.9 | 3.0 | 3.1 | 3.3 | 3.6 | 3.7 | 4.0 | 4.1 | 4.2 | 4.3 | 4.4 | 4.3 | 4.5 | 4.5 | 4.6 | 4.7 | 4.8 | 4.9 | 4.8 | 4.9 | 5.1 | 5.3 | 5.6 | 5.9 |
| 80歳以上 | 1,800 | 1,913 | 2,022 | 2,077 | 2,158 | 2,284 | 2,399 | 2,550 | 2,692 | 2,856 | 3,068 | 3,188 | 3,384 | 3,538 | 3,716 | 3,860 | 3,989 | 4,113 | 4,299 | 4,393 | 4,502 | 4,700 | 4,804 | 4,942 | 4,994 |
| 構成比（%） | 3.3 | 3.5 | 3.6 | 3.7 | 3.9 | 4.1 | 4.3 | 4.5 | 4.8 | 5.0 | 5.4 | 5.6 | 6.0 | 6.3 | 6.6 | 6.9 | 7.1 | 7.4 | 7.7 | 7.9 | 8.1 | 8.4 | 8.7 | 8.9 | 9.1 |
人口増加都市
