Adams |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 1126 |
| Ben Larson | R | 622 |
| Richard G. Christensen | R | 444 |
| John (Hugo Frye) Patric | D | 61 |
Asotin |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 1817 |
| Richard G. Christensen | R | 982 |
| Ben Larson | R | 169 |
| John (Hugo Frye) Patric | D | 116 |
Benton |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 6687 |
| Richard G. Christensen | R | 5096 |
| Ben Larson | R | 607 |
| John (Hugo Frye) Patric | D | 296 |
Chelan |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 3726 |
| Richard G. Christensen | R | 2765 |
| Ben Larson | R | 677 |
| John (Hugo Frye) Patric | D | 220 |
Clallam |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 3944 |
| Richard G. Christensen | R | 1574 |
| Ben Larson | R | 645 |
| John (Hugo Frye) Patric | D | 217 |
Clark |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 7746 |
| Richard G. Christensen | R | 2799 |
| Ben Larson | R | 1382 |
| John (Hugo Frye) Patric | D | 590 |
Columbia |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 663 |
| Richard G. Christensen | R | 441 |
| Ben Larson | R | 181 |
| John (Hugo Frye) Patric | D | 44 |
Cowlitz |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 3199 |
| Richard G. Christensen | R | 2025 |
| Ben Larson | R | 475 |
| John (Hugo Frye) Patric | D | 257 |
Douglas |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 2248 |
| Richard G. Christensen | R | 1071 |
| Ben Larson | R | 296 |
| John (Hugo Frye) Patric | D | 143 |
Ferry |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 601 |
| Richard G. Christensen | R | 253 |
| John (Hugo Frye) Patric | D | 58 |
| Ben Larson | R | 53 |
Franklin |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 2250 |
| Richard G. Christensen | R | 1162 |
| Ben Larson | R | 224 |
| John (Hugo Frye) Patric | D | 141 |
Garfield |
| Candidate | Party | Votes |
|---|
| Richard G. Christensen | R | 327 |
| Warren G. Magnuson | D | 158 |
| Ben Larson | R | 25 |
| John (Hugo Frye) Patric | D | 13 |
Grant |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 4327 |
| Richard G. Christensen | R | 2057 |
| Ben Larson | R | 593 |
| John (Hugo Frye) Patric | D | 271 |
Grays Harbor |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 6718 |
| Richard G. Christensen | R | 2809 |
| Ben Larson | R | 621 |
| John (Hugo Frye) Patric | D | 607 |
Island |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 1701 |
| Richard G. Christensen | R | 1157 |
| Ben Larson | R | 198 |
| John (Hugo Frye) Patric | D | 81 |
Jefferson |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 1409 |
| Richard G. Christensen | R | 589 |
| Ben Larson | R | 156 |
| John (Hugo Frye) Patric | D | 56 |
King |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 90156 |
| Richard G. Christensen | R | 56584 |
| Ben Larson | R | 12507 |
| John (Hugo Frye) Patric | D | 6320 |
Kitsap |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 12801 |
| Richard G. Christensen | R | 4851 |
| Ben Larson | R | 801 |
| John (Hugo Frye) Patric | D | 505 |
Kittitas |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 2550 |
| Richard G. Christensen | R | 1649 |
| Ben Larson | R | 288 |
| John (Hugo Frye) Patric | D | 180 |
Klickitat |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 2396 |
| Richard G. Christensen | R | 930 |
| Ben Larson | R | 289 |
| John (Hugo Frye) Patric | D | 139 |
Lewis |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 5912 |
| Richard G. Christensen | R | 4060 |
| Ben Larson | R | 848 |
| John (Hugo Frye) Patric | D | 281 |
Lincoln |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 1133 |
| Ben Larson | R | 1104 |
| Richard G. Christensen | R | 584 |
| John (Hugo Frye) Patric | D | 120 |
Mason |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 2981 |
| Richard G. Christensen | R | 1405 |
| Ben Larson | R | 241 |
| John (Hugo Frye) Patric | D | 140 |
Okanogan |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 4529 |
| Richard G. Christensen | R | 2336 |
| Ben Larson | R | 556 |
| John (Hugo Frye) Patric | D | 286 |
Pacific |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 2825 |
| Richard G. Christensen | R | 770 |
| Ben Larson | R | 255 |
| John (Hugo Frye) Patric | D | 138 |
Pend Oreille |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 1204 |
| Richard G. Christensen | R | 477 |
| Ben Larson | R | 155 |
| John (Hugo Frye) Patric | D | 96 |
Pierce |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 31010 |
| Richard G. Christensen | R | 19626 |
| Ben Larson | R | 3040 |
| John (Hugo Frye) Patric | D | 2252 |
San Juan |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 673 |
| Richard G. Christensen | R | 416 |
| Ben Larson | R | 130 |
| John (Hugo Frye) Patric | D | 32 |
Skagit |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 5055 |
| Richard G. Christensen | R | 2808 |
| Ben Larson | R | 914 |
| John (Hugo Frye) Patric | D | 265 |
Skamania |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 757 |
| Richard G. Christensen | R | 255 |
| Ben Larson | R | 76 |
| John (Hugo Frye) Patric | D | 45 |
Snohomish |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 17335 |
| Richard G. Christensen | R | 10558 |
| Ben Larson | R | 1461 |
| John (Hugo Frye) Patric | D | 1307 |
Spokane |
| Candidate | Party | Votes |
|---|
| Richard G. Christensen | R | 19049 |
| Warren G. Magnuson | D | 18444 |
| Ben Larson | R | 3379 |
| John (Hugo Frye) Patric | D | 1556 |
Stevens |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 2862 |
| Richard G. Christensen | R | 1520 |
| Ben Larson | R | 451 |
| John (Hugo Frye) Patric | D | 181 |
Thurston |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 8493 |
| Richard G. Christensen | R | 5280 |
| Ben Larson | R | 787 |
| John (Hugo Frye) Patric | D | 343 |
Wahkiakum |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 621 |
| Richard G. Christensen | R | 208 |
| Ben Larson | R | 62 |
| John (Hugo Frye) Patric | D | 20 |
Walla Walla |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 4036 |
| Richard G. Christensen | R | 3331 |
| Ben Larson | R | 829 |
| John (Hugo Frye) Patric | D | 206 |
Whatcom |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 6203 |
| Richard G. Christensen | R | 5019 |
| Ben Larson | R | 827 |
| John (Hugo Frye) Patric | D | 422 |
Whitman |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 2548 |
| Richard G. Christensen | R | 2033 |
| Ben Larson | R | 688 |
| John (Hugo Frye) Patric | D | 185 |
Yakima |
| Candidate | Party | Votes |
|---|
| Richard G. Christensen | R | 9316 |
| Warren G. Magnuson | D | 8137 |
| Ben Larson | R | 2147 |
| John (Hugo Frye) Patric | D | 659 |