Clallam |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 5528 |
| Payson Peterson | R | 3193 |
Island |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 1771 |
| Payson Peterson | R | 1241 |
Jefferson |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 1777 |
| Payson Peterson | R | 1273 |
King |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 13088 |
| Payson Peterson | R | 9854 |
San Juan |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 666 |
| Payson Peterson | R | 628 |
Skagit |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 9351 |
| Payson Peterson | R | 7393 |
Snohomish |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 27801 |
| Payson Peterson | R | 13615 |
Whatcom |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 14694 |
| Payson Peterson | R | 11777 |