Adams |
| Candidate | Party | Votes |
|---|
| Oscar S. Lewis | R | 2553 |
| Mike Murphy | D | 2007 |
| John Sample | L | 111 |
Asotin |
| Candidate | Party | Votes |
|---|
| Mike Murphy | D | 4190 |
| Oscar S. Lewis | R | 3730 |
| John Sample | L | 214 |
Benton |
| Candidate | Party | Votes |
|---|
| Oscar S. Lewis | R | 32136 |
| Mike Murphy | D | 26713 |
| John Sample | L | 2189 |
Chelan |
| Candidate | Party | Votes |
|---|
| Oscar S. Lewis | R | 13257 |
| Mike Murphy | D | 12621 |
| John Sample | L | 934 |
Clallam |
| Candidate | Party | Votes |
|---|
| Mike Murphy | D | 18344 |
| Oscar S. Lewis | R | 13539 |
| John Sample | L | 1463 |
Clark |
| Candidate | Party | Votes |
|---|
| Mike Murphy | D | 82995 |
| Oscar S. Lewis | R | 66160 |
| John Sample | L | 5640 |
Columbia |
| Candidate | Party | Votes |
|---|
| Oscar S. Lewis | R | 930 |
| Mike Murphy | D | 882 |
| John Sample | L | 67 |
Cowlitz |
| Candidate | Party | Votes |
|---|
| Mike Murphy | D | 24390 |
| Oscar S. Lewis | R | 13749 |
| John Sample | L | 1497 |
Douglas |
| Candidate | Party | Votes |
|---|
| Oscar S. Lewis | R | 6400 |
| Mike Murphy | D | 5624 |
| John Sample | L | 342 |
Ferry |
| Candidate | Party | Votes |
|---|
| Mike Murphy | D | 1463 |
| Oscar S. Lewis | R | 1399 |
| John Sample | L | 158 |
Franklin |
| Candidate | Party | Votes |
|---|
| Oscar S. Lewis | R | 7794 |
| Mike Murphy | D | 6937 |
| John Sample | L | 468 |
Garfield |
| Candidate | Party | Votes |
|---|
| Oscar S. Lewis | R | 600 |
| Mike Murphy | D | 534 |
| John Sample | L | 40 |
Grant |
| Candidate | Party | Votes |
|---|
| Oscar S. Lewis | R | 12962 |
| Mike Murphy | D | 10399 |
| John Sample | L | 817 |
Grays Harbor |
| Candidate | Party | Votes |
|---|
| Mike Murphy | D | 17852 |
| Oscar S. Lewis | R | 7285 |
| John Sample | L | 949 |
Island |
| Candidate | Party | Votes |
|---|
| Mike Murphy | D | 18987 |
| Oscar S. Lewis | R | 15061 |
| John Sample | L | 1186 |
Jefferson |
| Candidate | Party | Votes |
|---|
| Mike Murphy | D | 11387 |
| Oscar S. Lewis | R | 5187 |
| John Sample | L | 747 |
King |
| Candidate | Party | Votes |
|---|
| Mike Murphy | D | 553584 |
| Oscar S. Lewis | R | 220349 |
| John Sample | L | 29332 |
Kitsap |
| Candidate | Party | Votes |
|---|
| Mike Murphy | D | 65132 |
| Oscar S. Lewis | R | 40981 |
| John Sample | L | 4238 |
Kittitas |
| Candidate | Party | Votes |
|---|
| Mike Murphy | D | 7690 |
| Oscar S. Lewis | R | 6352 |
| John Sample | L | 586 |
Klickitat |
| Candidate | Party | Votes |
|---|
| Mike Murphy | D | 4354 |
| Oscar S. Lewis | R | 3572 |
| John Sample | L | 401 |
Lewis |
| Candidate | Party | Votes |
|---|
| Oscar S. Lewis | R | 14028 |
| Mike Murphy | D | 14011 |
| John Sample | L | 1236 |
Lincoln |
| Candidate | Party | Votes |
|---|
| Oscar S. Lewis | R | 2664 |
| Mike Murphy | D | 2296 |
| John Sample | L | 169 |
Mason |
| Candidate | Party | Votes |
|---|
| Mike Murphy | D | 14184 |
| Oscar S. Lewis | R | 8229 |
| John Sample | L | 960 |
Okanogan |
| Candidate | Party | Votes |
|---|
| Mike Murphy | D | 7244 |
| Oscar S. Lewis | R | 6850 |
| John Sample | L | 748 |
Pacific |
| Candidate | Party | Votes |
|---|
| Mike Murphy | D | 6048 |
| Oscar S. Lewis | R | 3049 |
| John Sample | L | 384 |
Pend Oreille |
| Candidate | Party | Votes |
|---|
| Mike Murphy | D | 2842 |
| Oscar S. Lewis | R | 2565 |
| John Sample | L | 290 |
Pierce |
| Candidate | Party | Votes |
|---|
| Mike Murphy | D | 171639 |
| Oscar S. Lewis | R | 109059 |
| John Sample | L | 9980 |
San Juan |
| Candidate | Party | Votes |
|---|
| Mike Murphy | D | 6054 |
| Oscar S. Lewis | R | 2590 |
| John Sample | L | 510 |
Skagit |
| Candidate | Party | Votes |
|---|
| Mike Murphy | D | 27413 |
| Oscar S. Lewis | R | 19190 |
| John Sample | L | 1872 |
Skamania |
| Candidate | Party | Votes |
|---|
| Mike Murphy | D | 2564 |
| Oscar S. Lewis | R | 1835 |
| John Sample | L | 282 |
Snohomish |
| Candidate | Party | Votes |
|---|
| Mike Murphy | D | 162101 |
| Oscar S. Lewis | R | 100963 |
| John Sample | L | 9994 |
Spokane |
| Candidate | Party | Votes |
|---|
| Mike Murphy | D | 102307 |
| Oscar S. Lewis | R | 77719 |
| John Sample | L | 6899 |
Stevens |
| Candidate | Party | Votes |
|---|
| Oscar S. Lewis | R | 9182 |
| Mike Murphy | D | 8167 |
| John Sample | L | 870 |
Thurston |
| Candidate | Party | Votes |
|---|
| Mike Murphy | D | 69998 |
| Oscar S. Lewis | R | 30525 |
| John Sample | L | 3825 |
Wahkiakum |
| Candidate | Party | Votes |
|---|
| Mike Murphy | D | 1169 |
| Oscar S. Lewis | R | 741 |
| John Sample | L | 86 |
Walla Walla |
| Candidate | Party | Votes |
|---|
| Mike Murphy | D | 10542 |
| Oscar S. Lewis | R | 9669 |
| John Sample | L | 641 |
Whatcom |
| Candidate | Party | Votes |
|---|
| Mike Murphy | D | 46883 |
| Oscar S. Lewis | R | 30693 |
| John Sample | L | 3147 |
Whitman |
| Candidate | Party | Votes |
|---|
| Mike Murphy | D | 8874 |
| Oscar S. Lewis | R | 6822 |
| John Sample | L | 635 |
Yakima |
| Candidate | Party | Votes |
|---|
| Mike Murphy | D | 35078 |
| Oscar S. Lewis | R | 31385 |
| John Sample | L | 2237 |