Adams |
| Candidate | Party | Votes |
|---|
| Don Davidson | R | 2716 |
| Mike Kreidler | D | 1535 |
| Mike Hihn | L | 149 |
Asotin |
| Candidate | Party | Votes |
|---|
| Don Davidson | R | 3609 |
| Mike Kreidler | D | 3078 |
| Mike Hihn | L | 295 |
Benton |
| Candidate | Party | Votes |
|---|
| Don Davidson | R | 29859 |
| Mike Kreidler | D | 20981 |
| Mike Hihn | L | 1947 |
Chelan |
| Candidate | Party | Votes |
|---|
| Don Davidson | R | 14046 |
| Mike Kreidler | D | 8563 |
| Mike Hihn | L | 868 |
Clallam |
| Candidate | Party | Votes |
|---|
| Mike Kreidler | D | 13321 |
| Don Davidson | R | 13027 |
| Mike Hihn | L | 1518 |
Clark |
| Candidate | Party | Votes |
|---|
| Don Davidson | R | 58519 |
| Mike Kreidler | D | 55518 |
| Mike Hihn | L | 5504 |
Columbia |
| Candidate | Party | Votes |
|---|
| Don Davidson | R | 1176 |
| Mike Kreidler | D | 587 |
| Mike Hihn | L | 67 |
Cowlitz |
| Candidate | Party | Votes |
|---|
| Mike Kreidler | D | 17698 |
| Don Davidson | R | 14065 |
| Mike Hihn | L | 1390 |
Douglas |
| Candidate | Party | Votes |
|---|
| Don Davidson | R | 6988 |
| Mike Kreidler | D | 4227 |
| Mike Hihn | L | 420 |
Ferry |
| Candidate | Party | Votes |
|---|
| Don Davidson | R | 1479 |
| Mike Kreidler | D | 1043 |
| Mike Hihn | L | 178 |
Franklin |
| Candidate | Party | Votes |
|---|
| Don Davidson | R | 6952 |
| Mike Kreidler | D | 5095 |
| Mike Hihn | L | 442 |
Garfield |
| Candidate | Party | Votes |
|---|
| Don Davidson | R | 677 |
| Mike Kreidler | D | 409 |
| Mike Hihn | L | 51 |
Grant |
| Candidate | Party | Votes |
|---|
| Don Davidson | R | 13112 |
| Mike Kreidler | D | 7634 |
| Mike Hihn | L | 953 |
Grays Harbor |
| Candidate | Party | Votes |
|---|
| Mike Kreidler | D | 13932 |
| Don Davidson | R | 8779 |
| Mike Hihn | L | 1091 |
Island |
| Candidate | Party | Votes |
|---|
| Don Davidson | R | 14004 |
| Mike Kreidler | D | 13781 |
| Mike Hihn | L | 1181 |
Jefferson |
| Candidate | Party | Votes |
|---|
| Mike Kreidler | D | 8010 |
| Don Davidson | R | 5367 |
| Mike Hihn | L | 753 |
King |
| Candidate | Party | Votes |
|---|
| Mike Kreidler | D | 415171 |
| Don Davidson | R | 234173 |
| Mike Hihn | L | 27648 |
Kitsap |
| Candidate | Party | Votes |
|---|
| Mike Kreidler | D | 49075 |
| Don Davidson | R | 40293 |
| Mike Hihn | L | 4231 |
Kittitas |
| Candidate | Party | Votes |
|---|
| Don Davidson | R | 6502 |
| Mike Kreidler | D | 5532 |
| Mike Hihn | L | 536 |
Klickitat |
| Candidate | Party | Votes |
|---|
| Don Davidson | R | 3632 |
| Mike Kreidler | D | 3084 |
| Mike Hihn | L | 374 |
Lewis |
| Candidate | Party | Votes |
|---|
| Don Davidson | R | 15064 |
| Mike Kreidler | D | 10656 |
| Mike Hihn | L | 1202 |
Lincoln |
| Candidate | Party | Votes |
|---|
| Don Davidson | R | 2791 |
| Mike Kreidler | D | 1535 |
| Mike Hihn | L | 202 |
Mason |
| Candidate | Party | Votes |
|---|
| Mike Kreidler | D | 10848 |
| Don Davidson | R | 8343 |
| Mike Hihn | L | 956 |
Okanogan |
| Candidate | Party | Votes |
|---|
| Don Davidson | R | 7493 |
| Mike Kreidler | D | 4818 |
| Mike Hihn | L | 752 |
Pacific |
| Candidate | Party | Votes |
|---|
| Mike Kreidler | D | 4597 |
| Don Davidson | R | 3145 |
| Mike Hihn | L | 362 |
Pend Oreille |
| Candidate | Party | Votes |
|---|
| Don Davidson | R | 2494 |
| Mike Kreidler | D | 2076 |
| Mike Hihn | L | 318 |
Pierce |
| Candidate | Party | Votes |
|---|
| Mike Kreidler | D | 135829 |
| Don Davidson | R | 98925 |
| Mike Hihn | L | 9626 |
San Juan |
| Candidate | Party | Votes |
|---|
| Mike Kreidler | D | 4156 |
| Don Davidson | R | 2719 |
| Mike Hihn | L | 458 |
Skagit |
| Candidate | Party | Votes |
|---|
| Mike Kreidler | D | 20337 |
| Don Davidson | R | 18791 |
| Mike Hihn | L | 1744 |
Skamania |
| Candidate | Party | Votes |
|---|
| Don Davidson | R | 1776 |
| Mike Kreidler | D | 1667 |
| Mike Hihn | L | 341 |
Snohomish |
| Candidate | Party | Votes |
|---|
| Mike Kreidler | D | 122619 |
| Don Davidson | R | 95842 |
| Mike Hihn | L | 9148 |
Spokane |
| Candidate | Party | Votes |
|---|
| Don Davidson | R | 74492 |
| Mike Kreidler | D | 73980 |
| Mike Hihn | L | 6402 |
Stevens |
| Candidate | Party | Votes |
|---|
| Don Davidson | R | 9167 |
| Mike Kreidler | D | 5941 |
| Mike Hihn | L | 975 |
Thurston |
| Candidate | Party | Votes |
|---|
| Mike Kreidler | D | 54701 |
| Don Davidson | R | 30478 |
| Mike Hihn | L | 3505 |
Wahkiakum |
| Candidate | Party | Votes |
|---|
| Mike Kreidler | D | 841 |
| Don Davidson | R | 772 |
| Mike Hihn | L | 81 |
Walla Walla |
| Candidate | Party | Votes |
|---|
| Don Davidson | R | 10670 |
| Mike Kreidler | D | 7503 |
| Mike Hihn | L | 746 |
Whatcom |
| Candidate | Party | Votes |
|---|
| Mike Kreidler | D | 32129 |
| Don Davidson | R | 29360 |
| Mike Hihn | L | 2922 |
Whitman |
| Candidate | Party | Votes |
|---|
| Don Davidson | R | 7174 |
| Mike Kreidler | D | 6129 |
| Mike Hihn | L | 590 |
Yakima |
| Candidate | Party | Votes |
|---|
| Don Davidson | R | 35097 |
| Mike Kreidler | D | 25403 |
| Mike Hihn | L | 2259 |