Births by Age of Parents by County,
Oregon Residents, Multnomah County, 2005-2007 | ? | Mother's Age |
| <15 | 15 | 16 | 17 | 18 | 19 | 20-24 | 25+ | N.S. | Total |
| Father's Age | Total | 37 | 109 | 203 | 381 | 586 | 896 | 6285 | 21630 | 4 | 30131 |
| <15 | 0 | 2 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 4 |
| 15 | 4 | 4 | 5 | 1 | 1 | 0 | 0 | 0 | 0 | 15 |
| 16 | 5 | 4 | 17 | 8 | 3 | 2 | 0 | 0 | 0 | 39 |
| 17 | 4 | 20 | 19 | 29 | 17 | 10 | 6 | 0 | 0 | 105 |
| 18 | 1 | 6 | 17 | 40 | 42 | 30 | 32 | 7 | 0 | 175 |
| 19 | 0 | 8 | 25 | 54 | 69 | 80 | 94 | 11 | 0 | 341 |
| 20 | 0 | 8 | 10 | 40 | 60 | 92 | 187 | 28 | 0 | 425 |
| 21 | 0 | 0 | 9 | 26 | 54 | 106 | 364 | 53 | 0 | 612 |
| 22 | 0 | 1 | 6 | 14 | 42 | 75 | 467 | 102 | 0 | 707 |
| 23 | 1 | 0 | 2 | 16 | 35 | 64 | 574 | 170 | 0 | 862 |
| 24 | 0 | 1 | 4 | 9 | 20 | 44 | 590 | 263 | 0 | 931 |
| 25+ | 0 | 3 | 9 | 30 | 81 | 199 | 2888 | 19380 | 1 | 22591 |
| N.S. | 22 | 52 | 79 | 114 | 162 | 194 | 1082 | 1616 | 3 | 3324 |