| District | Winner | Runner-Up | Other | Total Votes | |||||
|---|---|---|---|---|---|---|---|---|---|
| District 01 | Warren Magnuson* (D) | 69,010 | 65.5% | Harold Stewart (R) | 35,910 | 34.1% | 459 [+] | 0.4% | 105,379 |
| District 02 | Henry Jackson* (D) | 39,628 | 59.9% | Payson Peterson (R) | 26,573 | 40.1% | 0 | 0.0% | 66,201 |
| District 03 | Fred Norman (R) | 34,462 | 57.1% | Martin Smith* (D) | 25,894 | 42.9% | 0 | 0.0% | 60,356 |
| District 04 | Hal Holmes (R) | 34,495 | 63.6% | Knute Hill* (D) | 19,751 | 36.4% | 0 | 0.0% | 54,246 |
| District 05 | Walt Horan (R) | 47,242 | 62.7% | Clarence Dill (D) | 28,076 | 37.3% | 0 | 0.0% | 75,318 |
| District 06 | John Coffee* (D) | 42,666 | 64.0% | Ralph Woods (R) | 23,650 | 35.5% | 370 [+] | 0.6% | 66,686 |
| Total R vote: 202,332 (47.3%) Total D vote: 225,025 (52.6%) | |||||||||