Clallam |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 5323 |
| Payson Peterson | R | 3355 |
Island |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 1413 |
| Payson Peterson | R | 1315 |
Jefferson |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 1801 |
| Payson Peterson | R | 1556 |
King |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 10496 |
| Payson Peterson | R | 7070 |
San Juan |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 834 |
| Payson Peterson | R | 743 |
Skagit |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 8921 |
| Payson Peterson | R | 7901 |
Snohomish |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 24322 |
| Payson Peterson | R | 14139 |
Whatcom |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 13204 |
| Payson Peterson | R | 13130 |