Adams |
| Candidate | Party | Votes |
|---|
| Judith Billings | NP | 2024 |
| Denny Heck | NP | 1846 |
Asotin |
| Candidate | Party | Votes |
|---|
| Denny Heck | NP | 3001 |
| Judith Billings | NP | 2349 |
Benton |
| Candidate | Party | Votes |
|---|
| Judith Billings | NP | 20217 |
| Denny Heck | NP | 19285 |
Chelan |
| Candidate | Party | Votes |
|---|
| Denny Heck | NP | 9063 |
| Judith Billings | NP | 7210 |
Clallam |
| Candidate | Party | Votes |
|---|
| Judith Billings | NP | 9779 |
| Denny Heck | NP | 9643 |
Clark |
| Candidate | Party | Votes |
|---|
| Denny Heck | NP | 42917 |
| Judith Billings | NP | 26328 |
Columbia |
| Candidate | Party | Votes |
|---|
| Judith Billings | NP | 868 |
| Denny Heck | NP | 723 |
Cowlitz |
| Candidate | Party | Votes |
|---|
| Denny Heck | NP | 13721 |
| Judith Billings | NP | 9989 |
Douglas |
| Candidate | Party | Votes |
|---|
| Denny Heck | NP | 4505 |
| Judith Billings | NP | 3787 |
Ferry |
| Candidate | Party | Votes |
|---|
| Denny Heck | NP | 921 |
| Judith Billings | NP | 824 |
Franklin |
| Candidate | Party | Votes |
|---|
| Denny Heck | NP | 4582 |
| Judith Billings | NP | 4455 |
Garfield |
| Candidate | Party | Votes |
|---|
| Denny Heck | NP | 607 |
| Judith Billings | NP | 524 |
Grant |
| Candidate | Party | Votes |
|---|
| Denny Heck | NP | 7855 |
| Judith Billings | NP | 6980 |
Grays Harbor |
| Candidate | Party | Votes |
|---|
| Denny Heck | NP | 11953 |
| Judith Billings | NP | 9997 |
Island |
| Candidate | Party | Votes |
|---|
| Judith Billings | NP | 10119 |
| Denny Heck | NP | 8889 |
Jefferson |
| Candidate | Party | Votes |
|---|
| Judith Billings | NP | 4325 |
| Denny Heck | NP | 3894 |
King |
| Candidate | Party | Votes |
|---|
| Judith Billings | NP | 302160 |
| Denny Heck | NP | 285105 |
Kitsap |
| Candidate | Party | Votes |
|---|
| Judith Billings | NP | 31266 |
| Denny Heck | NP | 29739 |
Kittitas |
| Candidate | Party | Votes |
|---|
| Denny Heck | NP | 4783 |
| Judith Billings | NP | 4360 |
Klickitat |
| Candidate | Party | Votes |
|---|
| Denny Heck | NP | 3744 |
| Judith Billings | NP | 1696 |
Lewis |
| Candidate | Party | Votes |
|---|
| Judith Billings | NP | 11056 |
| Denny Heck | NP | 10000 |
Lincoln |
| Candidate | Party | Votes |
|---|
| Judith Billings | NP | 2064 |
| Denny Heck | NP | 1943 |
Mason |
| Candidate | Party | Votes |
|---|
| Judith Billings | NP | 7223 |
| Denny Heck | NP | 7028 |
Okanogan |
| Candidate | Party | Votes |
|---|
| Denny Heck | NP | 6088 |
| Judith Billings | NP | 4182 |
Pacific |
| Candidate | Party | Votes |
|---|
| Denny Heck | NP | 3635 |
| Judith Billings | NP | 3236 |
Pend Oreille |
| Candidate | Party | Votes |
|---|
| Denny Heck | NP | 1749 |
| Judith Billings | NP | 1542 |
Pierce |
| Candidate | Party | Votes |
|---|
| Judith Billings | NP | 85246 |
| Denny Heck | NP | 70280 |
San Juan |
| Candidate | Party | Votes |
|---|
| Judith Billings | NP | 2721 |
| Denny Heck | NP | 2116 |
Skagit |
| Candidate | Party | Votes |
|---|
| Judith Billings | NP | 14849 |
| Denny Heck | NP | 13605 |
Skamania |
| Candidate | Party | Votes |
|---|
| Denny Heck | NP | 1946 |
| Judith Billings | NP | 811 |
Snohomish |
| Candidate | Party | Votes |
|---|
| Judith Billings | NP | 73834 |
| Denny Heck | NP | 69867 |
Spokane |
| Candidate | Party | Votes |
|---|
| Denny Heck | NP | 65003 |
| Judith Billings | NP | 64394 |
Stevens |
| Candidate | Party | Votes |
|---|
| Denny Heck | NP | 5791 |
| Judith Billings | NP | 4758 |
Thurston |
| Candidate | Party | Votes |
|---|
| Judith Billings | NP | 33511 |
| Denny Heck | NP | 28696 |
Wahkiakum |
| Candidate | Party | Votes |
|---|
| Denny Heck | NP | 659 |
| Judith Billings | NP | 481 |
Walla Walla |
| Candidate | Party | Votes |
|---|
| Judith Billings | NP | 8862 |
| Denny Heck | NP | 6561 |
Whatcom |
| Candidate | Party | Votes |
|---|
| Judith Billings | NP | 22463 |
| Denny Heck | NP | 20011 |
Whitman |
| Candidate | Party | Votes |
|---|
| Judith Billings | NP | 6607 |
| Denny Heck | NP | 6467 |
Yakima |
| Candidate | Party | Votes |
|---|
| Denny Heck | NP | 25563 |
| Judith Billings | NP | 24433 |