| Table 4:- Population by single year of age and sex | ||||||
| Area and age | Total | Male | Female | |||
| Number | Percent | Number | Percent | Number | Percent | |
| NEPAL | ||||||
| All Ages | 18491097 | 100.0 | 9220974 | 100 | 9270123 | 100 |
| Under 1 yr. | 565413 | 3.1 | 287551 | 3.1 | 277862 | 3.0 |
| 1 year | 460274 | 2.5 | 235220 | 2.6 | 225054 | 2.4 |
| 2 years | 533319 | 2.9 | 268933 | 2.9 | 264386 | 2.9 |
| 3 years | 583404 | 3.2 | 291228 | 3.2 | 292176 | 3.2 |
| 4 years | 564942 | 3.1 | 288293 | 3.1 | 276649 | 3.0 |
| 5 years | 636151 | 3.4 | 326179 | 3.5 | 309972 | 3.3 |
| 6 years | 571258 | 3.1 | 291345 | 3.2 | 279913 | 3.0 |
| 7 years | 552009 | 3.0 | 278867 | 3.0 | 273142 | 2.9 |
| 8 years | 569938 | 3.1 | 293376 | 3.2 | 276562 | 3.0 |
| 9 years | 476777 | 2.6 | 240498 | 2.6 | 236279 | 2.5 |
| 10 years | 576228 | 3.1 | 301238 | 3.3 | 274990 | 3.0 |
| 11 years | 396070 | 2.1 | 206940 | 2.2 | 189130 | 2.0 |
| 12 years | 549825 | 3.0 | 288756 | 3.1 | 261069 | 2.8 |
| 13 years | 402263 | 2.2 | 206827 | 2.2 | 195436 | 2.1 |
| 14 years | 402900 | 2.2 | 206042 | 2.2 | 196858 | 2.1 |
| 15 years | 400424 | 2.2 | 203581 | 2.2 | 196843 | 2.1 |
| 16 years | 382755 | 2.1 | 188533 | 2.0 | 194222 | 2.1 |
| 17 years | 299671 | 1.6 | 144818 | 1.6 | 154853 | 1.7 |
| 18 years | 444487 | 2.4 | 213320 | 2.3 | 231167 | 2.5 |
| 19 years | 265190 | 1.4 | 127783 | 1.4 | 137407 | 1.5 |
| 20 years | 406777 | 2.2 | 181509 | 2.0 | 225268 | 2.4 |
| 21 years | 280871 | 1.5 | 135462 | 1.5 | 145409 | 1.6 |
| 22 years | 388800 | 2.1 | 175270 | 1.9 | 213530 | 2.3 |
| 23 years | 236699 | 1.3 | 109449 | 1.2 | 127250 | 1.4 |
| 24 years | 273616 | 1.5 | 127589 | 1.4 | 146027 | 1.6 |
| 25 years | 453172 | 2.5 | 209805 | 2.3 | 243367 | 2.6 |
| 26 years | 243648 | 1.3 | 114939 | 1.2 | 128709 | 1.4 |
| 27 years | 220914 | 1.2 | 107188 | 1.2 | 113726 | 1.2 |
| 28 years | 308250 | 1.7 | 142070 | 1.5 | 166180 | 1.8 |
| 29 years | 148425 | 0.8 | 74266 | 0.8 | 74159 | 0.8 |
| 30 years | 465704 | 2.5 | 211742 | 2.3 | 253962 | 2.7 |
| 31 years | 139576 | 0.8 | 72557 | 0.8 | 67019 | 0.7 |
| 32 years | 272944 | 1.5 | 130461 | 1.4 | 142483 | 1.5 |
| 33 years | 136481 | 0.7 | 68622 | 0.7 | 67859 | 0.7 |
| 34 years | 139596 | 0.8 | 68957 | 0.7 | 70639 | 0.8 |
| 35 years | 439071 | 2.4 | 215543 | 2.3 | 223528 | 2.4 |
| 36 years | 176176 | 1.0 | 90826 | 1.0 | 85350 | 0.9 |
| 37 years | 122488 | 0.7 | 64627 | 0.7 | 57861 | 0.6 |
| 38 years | 184311 | 1.0 | 91337 | 1.0 | 92974 | 1.0 |
| 39 years | 105201 | 0.6 | 53896 | 0.6 | 51305 | 0.6 |
| 40 years | 407750 | 2.2 | 188367 | 2.0 | 219383 | 2.4 |
| 41 years | 108154 | 0.6 | 57615 | 0.6 | 50539 | 0.5 |
| 42 years | 153004 | 0.8 | 75682 | 0.8 | 77322 | 0.8 |
| 43 years | 83891 | 0.5 | 42699 | 0.5 | 41192 | 0.4 |
| 44 years | 89920 | 0.5 | 45629 | 0.5 | 44291 | 0.5 |
| 45 years | 330403 | 1.8 | 161900 | 1.8 | 168503 | 1.8 |
| 46 years | 90076 | 0.5 | 47060 | 0.5 | 43016 | 0.5 |
| 47 years | 98415 | 0.5 | 53697 | 0.6 | 44718 | 0.5 |
| 48 years | 140042 | 0.8 | 74585 | 0.8 | 65457 | 0.7 |
| 49 years | 75226 | 0.4 | 37120 | 0.4 | 38106 | 0.4 |
| 50 years | 300017 | 1.6 | 143711 | 1.6 | 156306 | 1.7 |
| 51 years | 76250 | 0.4 | 42470 | 0.5 | 33780 | 0.4 |
| 52 years | 109441 | 0.6 | 58422 | 0.6 | 51019 | 0.6 |
| 53 years | 55508 | 0.3 | 31395 | 0.3 | 24113 | 0.3 |
| 54 years | 57268 | 0.3 | 31448 | 0.3 | 25820 | 0.3 |
| 55 years | 216410 | 1.2 | 110765 | 1.2 | 105645 | 1.1 |
| 56 years | 65455 | 0.4 | 36516 | 0.4 | 28939 | 0.3 |
| 57 years | 62546 | 0.3 | 35276 | 0.4 | 27270 | 0.3 |
| 58 years | 78610 | 0.4 | 43172 | 0.5 | 35438 | 0.4 |
| 59 years | 42936 | 0.2 | 24311 | 0.3 | 18625 | 0.2 |
| 60 years | 247740 | 1.3 | 115624 | 1.3 | 132116 | 1.4 |
| 61 years | 48829 | 0.3 | 26689 | 0.3 | 22140 | 0.2 |
| 62 years | 60602 | 0.3 | 31463 | 0.3 | 29139 | 0.3 |
| 63 years | 38199 | 0.2 | 21730 | 0.2 | 16469 | 0.2 |
| 64 years | 36275 | 0.2 | 19973 | 0.2 | 16302 | 0.2 |
| 65 years | 147950 | 0.8 | 72415 | 0.8 | 75535 | 0.8 |
| 66 years | 32226 | 0.2 | 18335 | 0.2 | 13891 | 0.1 |
| 67 years | 28824 | 0.2 | 16529 | 0.2 | 12295 | 0.1 |
| 68 years | 40911 | 0.2 | 22697 | 0.2 | 18214 | 0.2 |
| 69 years | 20561 | 0.1 | 11731 | 0.1 | 8830 | 0.1 |
| 70 years | 108159 | 0.6 | 52189 | 0.6 | 55970 | 0.6 |
| 71 years | 18601 | 0.1 | 10570 | 0.1 | 8031 | 0.1 |
| 72 years | 28593 | 0.2 | 15194 | 0.2 | 13399 | 0.1 |
| 73 years | 14995 | 0.1 | 8573 | 0.1 | 6422 | 0.1 |
| 74 years | 13604 | 0.1 | 7704 | 0.1 | 5900 | 0.1 |
| 75 years | 44815 | 0.2 | 21448 | 0.2 | 23367 | 0.3 |
| 76 years | 12525 | 0.1 | 6860 | 0.1 | 5665 | 0.1 |
| 77 years | 10344 | 0.1 | 5849 | 0.1 | 4495 | 0.0 |
| 78 years | 14315 | 0.1 | 7824 | 0.1 | 6491 | 0.1 |
| 79 years | 7967 | 0.0 | 4319 | 0.0 | 3648 | 0.0 |
| 80 years | 33074 | 0.2 | 14689 | 0.2 | 18385 | 0.2 |
| 81 years | 6501 | 0.0 | 3525 | 0.0 | 2976 | 0.0 |
| 82 years | 7664 | 0.0 | 3837 | 0.0 | 3827 | 0.0 |
| 83 years | 5209 | 0.0 | 2787 | 0.0 | 2422 | 0.0 |
| 84 years | 6361 | 0.0 | 3089 | 0.0 | 3272 | 0.0 |
| 85 years | 10764 | 0.1 | 4990 | 0.1 | 5774 | 0.1 |
| 86 years | 2993 | 0.0 | 1510 | 0.0 | 1483 | 0.0 |
| 87 years | 2547 | 0.0 | 1297 | 0.0 | 1250 | 0.0 |
| 88 years | 2868 | 0.0 | 1547 | 0.0 | 1321 | 0.0 |
| 89 years | 1553 | 0.0 | 772 | 0.0 | 781 | 0.0 |
| 90 years | 5880 | 0.0 | 2591 | 0.0 | 3289 | 0.0 |
| 91 years | 1063 | 0.0 | 535 | 0.0 | 528 | 0.0 |
| 92 years | 962 | 0.0 | 431 | 0.0 | 531 | 0.0 |
| 93 years | 785 | 0.0 | 369 | 0.0 | 416 | 0.0 |
| 94 years | 516 | 0.0 | 226 | 0.0 | 290 | 0.0 |
| 95 years | 2029 | 0.0 | 929 | 0.0 | 1100 | 0.0 |
| 96 years | 1053 | 0.0 | 505 | 0.0 | 548 | 0.0 |
| 97 years | 436 | 0.0 | 188 | 0.0 | 248 | 0.0 |
| 98 yrs & above | 2941 | 0.0 | 1205 | 0.0 | 1736 | 0.0 |
| Not Stated | 2523 | 0.0 | 953 | 0.0 | 1570 | 0.0 |