1931 Census of England and Wales, General Report, Table 42 : " Sex and Age Constitution of Sections of the Population".

Area Age(last birthday)
All ages 0-4 5-9 10-19 20-29 30-39 40-49 50-59 60-69 70-79 80 and over
ENGLAND AND WALES P 10,000 748 832 1,662 1,715 1,466 1,306 1,114 733 343 81
M 4,789 378 420 833 833 680 605 527 339 145 29
F 5,211 370 412 829 882 786 701 587 394 198 52
DENSITY DIVISIONS                        
All Urban Areas P 10,000 741 823 1662 1746 1481 1313 1116 717 327 74
M 4,747 374 415 825 836 682 604 524 328 134 25
F 5,253 367 408 837 910 799 709 592 389 193 49
All Rural Areas P 10,000 777 864 1,662 1,592 1,410 1,277 1,107 797 408 106
M 4,958 394 438 868 821 674 608 537 386 189 43
F 5,042 383 426 794 771 736 669 570 411 219 63
Greater London P 10,000 703 774 1,621 1,862 1,518 1,328 1,097 695 323 79
M 4,672 355 391 797 874 684 600 508 310 128 25
F 5,328 348 383 824 988 834 728 589 385 195 54
County Boroughs outside Greater London P 10,000 770 844 1,684 1,728 1,475 1,309 1,115 703 308 64
M 4,744 388 425 830 823 680 603 525 323 126 21
F 5,256 382 419 854 905 795 706 590 380 182 43
Other Urban Areas outside Greater London P 10,000 737 836 1,666 1,681 1,463 1,308 1,129 748 350 82
M 4,803 372 422 839 823 683 607 534 346 148 29
F 5,197 365 414 827 858 780 701 595 402 202 53
Rural Areas outside Greater London P 10,000 778 866 1,666 1,589 1,405 1,275 1,107 798 409 107
M 4,962 395 439 870 821 672 608 537 387 190 43
F 5,038 383 427 796 768 733 667 570 411 219 64
                         
GEOGRAPHICAL REGIONS                        
S.E., South East P 10,000 704 776 1,603 1,781 1,475 1,329 1,121 751 365 95
M 4,701 356 393 798 854 669 600 515 336 148 32
F 5,299 348 383 805 927 806 729 606 415 217 63
N.1, Northumberland and Durham P 10,000 895 1,009 1,859 1,640 1,414 1,224 1,021 623 265 50
M 4,964 452 510 953 812 678 591 511 311 125 21
F 5,036 443 499 906 828 736 633 510 312 140 29
N.2., Northern Rural Belt P 10,000 832 899 1,727 1,644 1,404 1,260 1,078 721 352 83
M 4,882 420 451 877 823 667 591 518 344 158 33
F 5,118 412 448 850 821 737 669 560 377 194 50
N.3., West Riding P 10,000 742 835 1,652 1,714 1,516 1,321 1,150 716 299 55
M 4,816 373 421 825 830 709 620 554 338 127 19
F 5,184 369 414 827 884 807 701 596 378 172 36
N.4., Lancashire and Cheshire P 10,000 735 811 1,645 1,727 1,504 1,353 1,158 718 296 53
M 4,728 370 407 815 823 687 618 540 329 121 18
F 5,272 365 404 830 904 817 735 618 389 175 35
M.1., West-Midland P 10,000 795 868 1,728 1,715 1,457 1,259 1,075 699 327 77
M 4,822 402 438 864 837 682 591 514 328 139 27
F 5,178 393 430 864 878 775 668 561 371 188 50
M.2., East Midlands P 10,000 769 852 1676 1,734 1,495 1,282 1,081 701 336 74
M 4,859 389 430 840 851 705 605 524 334 152 29
F 5,141 380 422 836 883 790 677 557 367 184 45
E., Eastern Counties P 10,000 764 845 1,660 1,596 1,351 1,275 1,116 819 447 127
M 4,903 387 429 850 812 641 602 539 391 203 49
F 5,097 377 416 810 784 710 673 577 428 244 78
S.W., South West Counties P 10,000 687 768 1,526 1,595 1,420 1,321 1,175 893 481 134
M 4,744 349 388 770 790 662 600 539 399 200 47
F 5,256 3,38 380 756 805 758 721 636 494 281 87
W.1., South Wales P 10,000 807 976 1,871 1,622 1,471 1,270 1,030 637 263 53
M 5,046 406 492 965 811 721 642 533 330 125 21
F 4,954 401 484 906 811 750 628 497 307 138 32
W.2., North and Central Wales P 10,000 740 833 1,654 1,564 1,394 1,257 1,166 854 433 105
M 4,833 374 424 839 776 657 581 550 400 191 41
F 5,167 366 409 815 788 737 676 616 454 242 64