７５歳階級別男女別人口（単位：人）平成20年平成21年平成22年平成23年年　齢総　数男女総　数総　数 64,229 31,975 32,254 ０～４歳 2,728 1,400 1,328 2,675 ５～９歳 2,957 1,503 1,454 １０～１４歳 3,151 1,637 １５～１９歳 3,229 ２０～２４歳男女 63,899 31,806 総　数男女総　数 32,093 63,696 31,658 1,373 1,302 2,649 1,364 1,285 2,936 1,485 1,451 2,934 1,467 1,514 3,155 1,633 1,522 3,097 1,658 1,571 3,108 1,586 1,522 3,536 1,750 1,786 3,366 1,700 ２５～２９歳 3,704 1,962 1,742 3,672 ３０～３４歳 4,461 2,401 2,060 ３５～３９歳 4,296 2,276 ４０～４４歳 3,679 ４５～４９歳女 31,582 31,804 2,587 1,331 1,256 1,467 2,849 1,443 1,406 1,612 1,485 3,074 1,579 1,495 3,051 1,561 1,490 3,075 1,582 1,493 1,666 3,212 1,613 1,599 3,129 1,611 1,518 1,892 1,780 3,597 1,851 1,746 3,432 1,737 1,695 4,233 2,287 1,946 4,131 2,220 1,911 3,949 2,138 1,811 2,020 4,381 2,319 2,062 4,526 2,366 2,160 4,578 2,441 2,137 1,917 1,762 3,837 2,035 1,802 3,866 2,083 1,783 3,973 2,101 1,872 3,602 1,892 1,710 3,487 1,842 1,645 3,539 1,875 1,664 3,575 1,916 1,659 ５０～５４歳 4,415 2,271 2,144 4,318 2,231 2,087 4,010 2,065 1,945 3,819 1,972 1,847 ５５～５９歳 5,643 2,854 2,789 5,340 2,663 2,677 5,068 2,517 2,551 4,828 2,411 2,417 ６０～６４歳 4,513 2,361 2,152 4,744 2,479 2,265 5,161 2,660 2,501 5,590 2,867 2,723 ６５～６９歳 3,784 1,884 1,900 3,966 1,974 1,992 4,035 2,040 1,995 3,829 1,953 1,876 ７０～７４歳 3,333 1,593 1,740 3,313 1,609 1,704 3,354 1,616 1,738 3,423 1,665 1,758 ７５～７９歳 2,977 1,270 1,707 2,976 1,286 1,690 2,923 1,276 1,647 2,907 1,273 1,634 ８０～８４歳 2,337 891 1,446 2,403 926 1,477 2,421 927 1,494 2,505 973 1,532 ８５～８９歳 1,209 316 893 1,310 349 961 1,389 405 984 1,471 434 1,037 ９０～９４歳 507 106 401 498 100 398 546 107 439 597 121 476 ９５～９９歳 155 31 124 165 34 131 170 30 140 174 30 144 １００歳～ 13 2 11 16 3 13 17 3 14 22 4 18 １５歳未満 8,836 4,540 4,296 8,766 4,491 4,275 8,680 4,443 4,237 8,510 4,353 4,157 １５～６４歳再６５歳以上掲６５～７４歳 41,078 21,342 19,736 40,486 21,034 19,452 40,161 20,811 19,350 39,948 20,776 19,172 14,315 6,093 8,222 14,647 6,281 8,366 14,855 6,404 8,451 14,928 6,453 8,475 7,117 3,477 3,640 7,279 3,583 3,696 7,389 3,656 3,733 7,252 3,618 3,634 ７５歳以上 7,198 2,616 4,582 7,368 2,698 4,670 7,466 2,748 4,718 7,676 2,835 4,841 １５歳未満 13.8% 14.2% 13.3% 13.7% 14.1% 13.3% 13.6% 14.0% 13.2% 13.4% 13.8% 13.1% 割１５～６４歳合６５歳以上（％）６５～７４歳 64.0% 66.7% 61.2% 63.4% 66.1% 60.6% 63.1% 68.4% 60.4% 63.0% 65.8% 60.3% 22.3% 19.1% 25.5% 22.9% 19.7% 26.1% 23.3% 20.2% 26.4% 23.6% 20.4% 26.6% 11.1% 10.9% 11.3% 11.4% 11.3% 11.5% 11.6% 11.5% 11.4% 11.4% 11.5% 11.4% ７５歳以上 11.2% 8.2% 14.2% 11.5% 8.5% 14.6% 11.7% 8.7% 14.7% 12.1% 9.0% 15.2% （注）各年4月1日現在 32,038 63,386 男資料：住民基本台帳 14