Births by Age of Parents by County,
Oregon Residents, Benton County, 2005-2007 | ? | Mother's Age |
| <15 | 15 | 16 | 17 | 18 | 19 | 20-24 | 25+ | N.S. | Total |
| Father's Age | Total | 0 | 3 | 7 | 15 | 34 | 63 | 462 | 1816 | 2 | 2402 |
| <15 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 15 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 16 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| 17 | 0 | 2 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 5 |
| 18 | 0 | 0 | 3 | 2 | 5 | 2 | 1 | 1 | 0 | 14 |
| 19 | 0 | 0 | 0 | 1 | 7 | 5 | 7 | 0 | 0 | 20 |
| 20 | 0 | 0 | 0 | 2 | 6 | 2 | 6 | 0 | 0 | 16 |
| 21 | 0 | 0 | 1 | 1 | 3 | 12 | 26 | 2 | 0 | 45 |
| 22 | 0 | 0 | 0 | 1 | 2 | 7 | 33 | 10 | 0 | 53 |
| 23 | 0 | 0 | 0 | 0 | 2 | 6 | 58 | 14 | 0 | 80 |
| 24 | 0 | 0 | 0 | 0 | 1 | 3 | 58 | 25 | 0 | 87 |
| 25+ | 0 | 0 | 0 | 1 | 2 | 14 | 221 | 1691 | 0 | 1929 |
| N.S. | 0 | 1 | 2 | 5 | 5 | 12 | 52 | 73 | 2 | 152 |