Clallam |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 4207 |
| Payson Peterson | R | 2921 |
Island |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 1473 |
| Payson Peterson | R | 1299 |
Jefferson |
| Candidate | Party | Votes |
|---|
| Payson Peterson | R | 1307 |
| Henry M. Jackson | D | 1184 |
King |
| Candidate | Party | Votes |
|---|
| Payson Peterson | R | 11384 |
| Henry M. Jackson | D | 8755 |
San Juan |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 631 |
| Payson Peterson | R | 591 |
Skagit |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 7472 |
| Payson Peterson | R | 6979 |
Snohomish |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 19796 |
| Payson Peterson | R | 12994 |
Whatcom |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 10571 |
| Payson Peterson | R | 10363 |