| Table 1. Age and Sex by District, Northern (Oro): 2000 | |||
| Total | Ijivitari | Sohe | |
| Total | 133,065 | 67,975 | 65,090 |
| Less than 5 | 21,609 | 10,935 | 10,674 |
| 5 to 9 | 19,547 | 10,002 | 9,545 |
| 10 to 14 | 16,611 | 8,350 | 8,261 |
| 15 to 19 | 13,844 | 6,980 | 6,864 |
| 20 to 24 | 12,389 | 6,464 | 5,925 |
| 25 to 29 | 11,346 | 5,942 | 5,404 |
| 30 to 34 | 9,135 | 4,618 | 4,517 |
| 35 to 39 | 7,563 | 3,807 | 3,756 |
| 40 to 44 | 5,572 | 2,868 | 2,704 |
| 45 to 49 | 4,502 | 2,251 | 2,251 |
| 50 to 54 | 3,281 | 1,714 | 1,567 |
| 55 to 59 | 2,409 | 1,280 | 1,129 |
| 60 to 64 | 2,075 | 1,117 | 958 |
| 65 to 69 | 1,403 | 741 | 662 |
| 70 to 74 | 931 | 487 | 444 |
| 75 and over | 848 | 419 | 429 |
| Median | 18.2 | 18.4 | 18.0 |
| Males | 69,857 | 35,660 | 34,197 |
| Less than 5 | 11,355 | 5,712 | 5,643 |
| 5 to 9 | 10,205 | 5,214 | 4,991 |
| 10 to 14 | 8,670 | 4,367 | 4,303 |
| 15 to 19 | 7,338 | 3,713 | 3,625 |
| 20 to 24 | 6,278 | 3,257 | 3,021 |
| 25 to 29 | 5,790 | 3,031 | 2,759 |
| 30 to 34 | 4,821 | 2,471 | 2,350 |
| 35 to 39 | 4,071 | 2,040 | 2,031 |
| 40 to 44 | 2,947 | 1,528 | 1,419 |
| 45 to 49 | 2,381 | 1,200 | 1,181 |
| 50 to 54 | 1,775 | 931 | 844 |
| 55 to 59 | 1,320 | 681 | 639 |
| 60 to 64 | 1,133 | 612 | 521 |
| 65 to 69 | 762 | 392 | 370 |
| 70 to 74 | 521 | 272 | 249 |
| 75 and over | 490 | 239 | 251 |
| Median | 18.2 | 18.4 | 18.0 |
| Females | 63,208 | 32,315 | 30,893 |
| Less than 5 | 10,254 | 5,223 | 5,031 |
| 5 to 9 | 9,342 | 4,788 | 4,554 |
| 10 to 14 | 7,941 | 3,983 | 3,958 |
| 15 to 19 | 6,506 | 3,267 | 3,239 |
| 20 to 24 | 6,111 | 3,207 | 2,904 |
| 25 to 29 | 5,556 | 2,911 | 2,645 |
| 30 to 34 | 4,314 | 2,147 | 2,167 |
| 35 to 39 | 3,492 | 1,767 | 1,725 |
| 40 to 44 | 2,625 | 1,340 | 1,285 |
| 45 to 49 | 2,121 | 1,051 | 1,070 |
| 50 to 54 | 1,506 | 783 | 723 |
| 55 to 59 | 1,089 | 599 | 490 |
| 60 to 64 | 942 | 505 | 437 |
| 65 to 69 | 641 | 349 | 292 |
| 70 to 74 | 410 | 215 | 195 |
| 75 and over | 358 | 180 | 178 |
| Median | 18.1 | 18.3 | 17.9 |
| Source: 2000 Papua New Guinea Census | |||