Chelan |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 2667 |
| Payson Peterson | R | 1285 |
| Ernest W. Lennart | R | 494 |
Island |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 1061 |
| Payson Peterson | R | 549 |
| Ernest W. Lennart | R | 307 |
Jefferson |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 1018 |
| Payson Peterson | R | 712 |
| Ernest W. Lennart | R | 259 |
King |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 3894 |
| Payson Peterson | R | 2580 |
| Ernest W. Lennart | R | 1769 |
San Juan |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 415 |
| Payson Peterson | R | 345 |
| Ernest W. Lennart | R | 113 |
Skagit |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 4170 |
| Payson Peterson | R | 2879 |
| Ernest W. Lennart | R | 1345 |
Snohomish |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 11158 |
| Payson Peterson | R | 4842 |
| Ernest W. Lennart | R | 2065 |
Whatcom |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 4222 |
| Ernest W. Lennart | R | 3250 |
| Payson Peterson | R | 2417 |