| District | Winner | Runner-Up | Other | Total Votes | |||||
|---|---|---|---|---|---|---|---|---|---|
| District 01 | Warren Magnuson* (D) | 113,988 | 61.6% | Fred Wettrick (R) | 71,110 | 38.4% | 0 | 0.0% | 185,098 |
| District 02 | Henry Jackson (D) | 66,314 | 57.4% | Payson Peterson (R) | 49,209 | 42.6% | 0 | 0.0% | 115,523 |
| District 03 | Martin Smith* (D) | 60,529 | 55.3% | Russell Mack (R) | 48,700 | 44.5% | 230 [+] | 0.2% | 109,459 |
| District 04 | Knute Hill* (D) | 50,493 | 51.3% | Frank Miller (R) | 48,003 | 48.7% | 0 | 0.0% | 98,496 |
| District 05 | Charles Leavy* (D) | 67,582 | 55.5% | Walt Horan (R) | 54,258 | 44.5% | 0 | 0.0% | 121,840 |
| District 06 | John Coffee* (D) | 71,536 | 62.8% | Paul Preus (R) | 42,334 | 37.2% | 0 | 0.0% | 113,870 |
| Total R vote: 313,614 (42.1%) Total D vote: 430,442 (57.8%) | |||||||||