Adams |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 2316 |
| Lloyd J. Andrews | R | 1808 |
Asotin |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 3556 |
| Lloyd J. Andrews | R | 1655 |
Benton |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 21054 |
| Lloyd J. Andrews | R | 6916 |
Chelan |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 11189 |
| Lloyd J. Andrews | R | 5967 |
Clallam |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 9754 |
| Lloyd J. Andrews | R | 3351 |
Clark |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 28007 |
| Lloyd J. Andrews | R | 10733 |
Columbia |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 1234 |
| Lloyd J. Andrews | R | 1014 |
Cowlitz |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 17042 |
| Lloyd J. Andrews | R | 5859 |
Douglas |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 4104 |
| Lloyd J. Andrews | R | 2073 |
Ferry |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 940 |
| Lloyd J. Andrews | R | 449 |
Franklin |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 7323 |
| Lloyd J. Andrews | R | 2463 |
Garfield |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 806 |
| Lloyd J. Andrews | R | 679 |
Grant |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 9764 |
| Lloyd J. Andrews | R | 4280 |
Grays Harbor |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 17624 |
| Lloyd J. Andrews | R | 4614 |
Island |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 4835 |
| Lloyd J. Andrews | R | 2043 |
Jefferson |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 3260 |
| Lloyd J. Andrews | R | 1058 |
King |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 323583 |
| Lloyd J. Andrews | R | 109955 |
Kitsap |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 30623 |
| Lloyd J. Andrews | R | 6196 |
Kittitas |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 5867 |
| Lloyd J. Andrews | R | 2411 |
Klickitat |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 3500 |
| Lloyd J. Andrews | R | 1698 |
Lewis |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 12545 |
| Lloyd J. Andrews | R | 5754 |
Lincoln |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 2641 |
| Lloyd J. Andrews | R | 2430 |
Mason |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 5892 |
| Lloyd J. Andrews | R | 1907 |
Okanogan |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 6637 |
| Lloyd J. Andrews | R | 3296 |
Pacific |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 5081 |
| Lloyd J. Andrews | R | 1401 |
Pend Oreille |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 1981 |
| Lloyd J. Andrews | R | 886 |
Pierce |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 91277 |
| Lloyd J. Andrews | R | 30086 |
San Juan |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 990 |
| Lloyd J. Andrews | R | 689 |
Skagit |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 16013 |
| Lloyd J. Andrews | R | 5763 |
Skamania |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 1688 |
| Lloyd J. Andrews | R | 595 |
Snohomish |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 62920 |
| Lloyd J. Andrews | R | 16692 |
Spokane |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 66150 |
| Lloyd J. Andrews | R | 41604 |
Stevens |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 4321 |
| Lloyd J. Andrews | R | 2954 |
Thurston |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 18963 |
| Lloyd J. Andrews | R | 7458 |
Wahkiakum |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 1092 |
| Lloyd J. Andrews | R | 447 |
Walla Walla |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 10103 |
| Lloyd J. Andrews | R | 6980 |
Whatcom |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 21585 |
| Lloyd J. Andrews | R | 8776 |
Whitman |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 7334 |
| Lloyd J. Andrews | R | 5838 |
Yakima |
| Candidate | Party | Votes |
|---|
| Henry M. Jackson | D | 32356 |
| Lloyd J. Andrews | R | 18360 |