Adams |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 2225 |
| Arthur B. Langlie | R | 1621 |
Asotin |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 3253 |
| Arthur B. Langlie | R | 1855 |
Benton |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 15956 |
| Arthur B. Langlie | R | 9270 |
Chelan |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 10805 |
| Arthur B. Langlie | R | 6803 |
Clallam |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 7742 |
| Arthur B. Langlie | R | 4515 |
Clark |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 23768 |
| Arthur B. Langlie | R | 14255 |
Columbia |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 1103 |
| Arthur B. Langlie | R | 963 |
Cowlitz |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 14711 |
| Arthur B. Langlie | R | 9176 |
Douglas |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 4056 |
| Arthur B. Langlie | R | 1600 |
Ferry |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 1025 |
| Arthur B. Langlie | R | 423 |
Franklin |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 5670 |
| Arthur B. Langlie | R | 2293 |
Garfield |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 893 |
| Arthur B. Langlie | R | 700 |
Grant |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 9602 |
| Arthur B. Langlie | R | 3747 |
Grays Harbor |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 16384 |
| Arthur B. Langlie | R | 7533 |
Island |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 2733 |
| Arthur B. Langlie | R | 2401 |
Jefferson |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 2428 |
| Arthur B. Langlie | R | 1553 |
King |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 216518 |
| Arthur B. Langlie | R | 159035 |
Kitsap |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 27135 |
| Arthur B. Langlie | R | 10253 |
Kittitas |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 5245 |
| Arthur B. Langlie | R | 3343 |
Klickitat |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 3041 |
| Arthur B. Langlie | R | 2148 |
Lewis |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 11423 |
| Arthur B. Langlie | R | 7647 |
Lincoln |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 3152 |
| Arthur B. Langlie | R | 2128 |
Mason |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 5118 |
| Arthur B. Langlie | R | 2626 |
Okanogan |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 7153 |
| Arthur B. Langlie | R | 3365 |
Pacific |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 4846 |
| Arthur B. Langlie | R | 2596 |
Pend Oreille |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 1959 |
| Arthur B. Langlie | R | 1015 |
Pierce |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 75828 |
| Arthur B. Langlie | R | 36122 |
San Juan |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 836 |
| Arthur B. Langlie | R | 821 |
Skagit |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 12238 |
| Arthur B. Langlie | R | 8777 |
Skamania |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 1406 |
| Arthur B. Langlie | R | 738 |
Snohomish |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 40855 |
| Arthur B. Langlie | R | 20368 |
Spokane |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 63369 |
| Arthur B. Langlie | R | 42946 |
Stevens |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 4968 |
| Arthur B. Langlie | R | 3019 |
Thurston |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 14173 |
| Arthur B. Langlie | R | 9388 |
Wahkiakum |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 1118 |
| Arthur B. Langlie | R | 624 |
Walla Walla |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 9270 |
| Arthur B. Langlie | R | 8129 |
Whatcom |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 18113 |
| Arthur B. Langlie | R | 13359 |
Whitman |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 6606 |
| Arthur B. Langlie | R | 6456 |
Yakima |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 28841 |
| Arthur B. Langlie | R | 23041 |