Adams |
| Candidate | Party | Votes |
|---|
| Harry P. Cain | R | 1447 |
| Hugh B. Mitchell | D | 705 |
| Harry Morton | SL | 2 |
| Charles R. Swett | SW | 1 |
Asotin |
| Candidate | Party | Votes |
|---|
| Hugh B. Mitchell | D | 1545 |
| Harry P. Cain | R | 1462 |
| Harry Morton | SL | 4 |
| Charles R. Swett | SW | 0 |
Benton |
| Candidate | Party | Votes |
|---|
| Harry P. Cain | R | 3996 |
| Hugh B. Mitchell | D | 3005 |
| Harry Morton | SL | 8 |
| Charles R. Swett | SW | 1 |
Chelan |
| Candidate | Party | Votes |
|---|
| Harry P. Cain | R | 6065 |
| Hugh B. Mitchell | D | 3998 |
| Harry Morton | SL | 6 |
| Charles R. Swett | SW | 1 |
Clallam |
| Candidate | Party | Votes |
|---|
| Hugh B. Mitchell | D | 3653 |
| Harry P. Cain | R | 3644 |
| Harry Morton | SL | 12 |
| Charles R. Swett | SW | 2 |
Clark |
| Candidate | Party | Votes |
|---|
| Harry P. Cain | R | 10067 |
| Hugh B. Mitchell | D | 10034 |
| Charles R. Swett | SW | 68 |
| Harry Morton | SL | 16 |
Columbia |
| Candidate | Party | Votes |
|---|
| Harry P. Cain | R | 1069 |
| Hugh B. Mitchell | D | 544 |
| Harry Morton | SL | 2 |
| Charles R. Swett | SW | 1 |
Cowlitz |
| Candidate | Party | Votes |
|---|
| Harry P. Cain | R | 6648 |
| Hugh B. Mitchell | D | 6495 |
| Harry Morton | SL | 30 |
| Charles R. Swett | SW | 5 |
Douglas |
| Candidate | Party | Votes |
|---|
| Harry P. Cain | R | 1703 |
| Hugh B. Mitchell | D | 1247 |
| Charles R. Swett | SW | 0 |
| Harry Morton | SL | 0 |
Ferry |
| Candidate | Party | Votes |
|---|
| Hugh B. Mitchell | D | 584 |
| Harry P. Cain | R | 539 |
| Harry Morton | SL | 4 |
| Charles R. Swett | SW | 2 |
Franklin |
| Candidate | Party | Votes |
|---|
| Harry P. Cain | R | 1399 |
| Hugh B. Mitchell | D | 1260 |
| Harry Morton | SL | 6 |
| Charles R. Swett | SW | 0 |
Garfield |
| Candidate | Party | Votes |
|---|
| Harry P. Cain | R | 925 |
| Hugh B. Mitchell | D | 363 |
| Charles R. Swett | SW | 0 |
| Harry Morton | SL | 0 |
Grant |
| Candidate | Party | Votes |
|---|
| Hugh B. Mitchell | D | 2035 |
| Harry P. Cain | R | 1696 |
| Harry Morton | SL | 9 |
| Charles R. Swett | SW | 0 |
Grays Harbor |
| Candidate | Party | Votes |
|---|
| Hugh B. Mitchell | D | 8444 |
| Harry P. Cain | R | 8041 |
| Harry Morton | SL | 79 |
| Charles R. Swett | SW | 11 |
Island |
| Candidate | Party | Votes |
|---|
| Harry P. Cain | R | 1575 |
| Hugh B. Mitchell | D | 1185 |
| Harry Morton | SL | 6 |
| Charles R. Swett | SW | 0 |
Jefferson |
| Candidate | Party | Votes |
|---|
| Harry P. Cain | R | 1586 |
| Hugh B. Mitchell | D | 1082 |
| Harry Morton | SL | 9 |
| Charles R. Swett | SW | 4 |
King |
| Candidate | Party | Votes |
|---|
| Harry P. Cain | R | 122014 |
| Hugh B. Mitchell | D | 97759 |
| Harry Morton | SL | 332 |
| Charles R. Swett | SW | 144 |
Kitsap |
| Candidate | Party | Votes |
|---|
| Hugh B. Mitchell | D | 12242 |
| Harry P. Cain | R | 11054 |
| Harry Morton | SL | 22 |
| Charles R. Swett | SW | 15 |
Kittitas |
| Candidate | Party | Votes |
|---|
| Harry P. Cain | R | 3265 |
| Hugh B. Mitchell | D | 2897 |
| Harry Morton | SL | 5 |
| Charles R. Swett | SW | 0 |
Klickitat |
| Candidate | Party | Votes |
|---|
| Harry P. Cain | R | 1884 |
| Hugh B. Mitchell | D | 1303 |
| Harry Morton | SL | 27 |
| Charles R. Swett | SW | 7 |
Lewis |
| Candidate | Party | Votes |
|---|
| Harry P. Cain | R | 8544 |
| Hugh B. Mitchell | D | 4658 |
| Harry Morton | SL | 25 |
| Charles R. Swett | SW | 6 |
Lincoln |
| Candidate | Party | Votes |
|---|
| Harry P. Cain | R | 2764 |
| Hugh B. Mitchell | D | 1379 |
| Harry Morton | SL | 3 |
| Charles R. Swett | SW | 0 |
Mason |
| Candidate | Party | Votes |
|---|
| Harry P. Cain | R | 2400 |
| Hugh B. Mitchell | D | 2010 |
| Harry Morton | SL | 17 |
| Charles R. Swett | SW | 4 |
Okanogan |
| Candidate | Party | Votes |
|---|
| Harry P. Cain | R | 3637 |
| Hugh B. Mitchell | D | 2827 |
| Harry Morton | SL | 14 |
| Charles R. Swett | SW | 3 |
Pacific |
| Candidate | Party | Votes |
|---|
| Harry P. Cain | R | 2387 |
| Hugh B. Mitchell | D | 2287 |
| Harry Morton | SL | 4 |
| Charles R. Swett | SW | 0 |
Pend Oreille |
| Candidate | Party | Votes |
|---|
| Harry P. Cain | R | 1159 |
| Hugh B. Mitchell | D | 932 |
| Harry Morton | SL | 5 |
| Charles R. Swett | SW | 2 |
Pierce |
| Candidate | Party | Votes |
|---|
| Hugh B. Mitchell | D | 36064 |
| Harry P. Cain | R | 31806 |
| Harry Morton | SL | 843 |
| Charles R. Swett | SW | 92 |
San Juan |
| Candidate | Party | Votes |
|---|
| Harry P. Cain | R | 735 |
| Hugh B. Mitchell | D | 460 |
| Harry Morton | SL | 3 |
| Charles R. Swett | SW | 1 |
Skagit |
| Candidate | Party | Votes |
|---|
| Harry P. Cain | R | 7854 |
| Hugh B. Mitchell | D | 6878 |
| Harry Morton | SL | 18 |
| Charles R. Swett | SW | 5 |
Skamania |
| Candidate | Party | Votes |
|---|
| Hugh B. Mitchell | D | 676 |
| Harry P. Cain | R | 638 |
| Harry Morton | SL | 4 |
| Charles R. Swett | SW | 3 |
Snohomish |
| Candidate | Party | Votes |
|---|
| Hugh B. Mitchell | D | 17301 |
| Harry P. Cain | R | 15645 |
| Harry Morton | SL | 354 |
| Charles R. Swett | SW | 40 |
Spokane |
| Candidate | Party | Votes |
|---|
| Harry P. Cain | R | 36029 |
| Hugh B. Mitchell | D | 27358 |
| Harry Morton | SL | 130 |
| Charles R. Swett | SW | 46 |
Stevens |
| Candidate | Party | Votes |
|---|
| Harry P. Cain | R | 3136 |
| Hugh B. Mitchell | D | 2383 |
| Harry Morton | SL | 9 |
| Charles R. Swett | SW | 6 |
Thurston |
| Candidate | Party | Votes |
|---|
| Harry P. Cain | R | 8440 |
| Hugh B. Mitchell | D | 6948 |
| Harry Morton | SL | 24 |
| Charles R. Swett | SW | 4 |
Wahkiakum |
| Candidate | Party | Votes |
|---|
| Hugh B. Mitchell | D | 726 |
| Harry P. Cain | R | 671 |
| Harry Morton | SL | 7 |
| Charles R. Swett | SW | 0 |
Walla Walla |
| Candidate | Party | Votes |
|---|
| Harry P. Cain | R | 6666 |
| Hugh B. Mitchell | D | 3841 |
| Harry Morton | SL | 6 |
| Charles R. Swett | SW | 1 |
Whatcom |
| Candidate | Party | Votes |
|---|
| Harry P. Cain | R | 11897 |
| Hugh B. Mitchell | D | 9400 |
| Harry Morton | SL | 183 |
| Charles R. Swett | SW | 23 |
Whitman |
| Candidate | Party | Votes |
|---|
| Harry P. Cain | R | 6338 |
| Hugh B. Mitchell | D | 3237 |
| Harry Morton | SL | 14 |
| Charles R. Swett | SW | 2 |
Yakima |
| Candidate | Party | Votes |
|---|
| Harry P. Cain | R | 18022 |
| Hugh B. Mitchell | D | 8938 |
| Harry Morton | SL | 55 |
| Charles R. Swett | SW | 15 |