Adams |
| Candidate | Party | Votes |
|---|
| Brian Sonntag | D | 2162 |
| Robert B. Keene, Jr. | R | 2143 |
Asotin |
| Candidate | Party | Votes |
|---|
| Brian Sonntag | D | 3868 |
| Robert B. Keene, Jr. | R | 2926 |
Benton |
| Candidate | Party | Votes |
|---|
| Brian Sonntag | D | 26480 |
| Robert B. Keene, Jr. | R | 23704 |
Chelan |
| Candidate | Party | Votes |
|---|
| Brian Sonntag | D | 10850 |
| Robert B. Keene, Jr. | R | 10713 |
Clallam |
| Candidate | Party | Votes |
|---|
| Brian Sonntag | D | 15475 |
| Robert B. Keene, Jr. | R | 11686 |
Clark |
| Candidate | Party | Votes |
|---|
| Brian Sonntag | D | 58695 |
| Robert B. Keene, Jr. | R | 45744 |
Columbia |
| Candidate | Party | Votes |
|---|
| Brian Sonntag | D | 984 |
| Robert B. Keene, Jr. | R | 843 |
Cowlitz |
| Candidate | Party | Votes |
|---|
| Brian Sonntag | D | 19721 |
| Robert B. Keene, Jr. | R | 11279 |
Douglas |
| Candidate | Party | Votes |
|---|
| Robert B. Keene, Jr. | R | 5191 |
| Brian Sonntag | D | 4943 |
Ferry |
| Candidate | Party | Votes |
|---|
| Brian Sonntag | D | 1472 |
| Robert B. Keene, Jr. | R | 1136 |
Franklin |
| Candidate | Party | Votes |
|---|
| Brian Sonntag | D | 6182 |
| Robert B. Keene, Jr. | R | 5401 |
Garfield |
| Candidate | Party | Votes |
|---|
| Brian Sonntag | D | 626 |
| Robert B. Keene, Jr. | R | 539 |
Grant |
| Candidate | Party | Votes |
|---|
| Robert B. Keene, Jr. | R | 10230 |
| Brian Sonntag | D | 10190 |
Grays Harbor |
| Candidate | Party | Votes |
|---|
| Brian Sonntag | D | 16952 |
| Robert B. Keene, Jr. | R | 7167 |
Island |
| Candidate | Party | Votes |
|---|
| Brian Sonntag | D | 15179 |
| Robert B. Keene, Jr. | R | 11045 |
Jefferson |
| Candidate | Party | Votes |
|---|
| Brian Sonntag | D | 8641 |
| Robert B. Keene, Jr. | R | 4476 |
King |
| Candidate | Party | Votes |
|---|
| Brian Sonntag | D | 469098 |
| Robert B. Keene, Jr. | R | 199200 |
Kitsap |
| Candidate | Party | Votes |
|---|
| Brian Sonntag | D | 55146 |
| Robert B. Keene, Jr. | R | 31147 |
Kittitas |
| Candidate | Party | Votes |
|---|
| Brian Sonntag | D | 7025 |
| Robert B. Keene, Jr. | R | 4426 |
Klickitat |
| Candidate | Party | Votes |
|---|
| Brian Sonntag | D | 3655 |
| Robert B. Keene, Jr. | R | 2669 |
Lewis |
| Candidate | Party | Votes |
|---|
| Brian Sonntag | D | 13622 |
| Robert B. Keene, Jr. | R | 11471 |
Lincoln |
| Candidate | Party | Votes |
|---|
| Brian Sonntag | D | 2325 |
| Robert B. Keene, Jr. | R | 2243 |
Mason |
| Candidate | Party | Votes |
|---|
| Brian Sonntag | D | 13065 |
| Robert B. Keene, Jr. | R | 6525 |
Okanogan |
| Candidate | Party | Votes |
|---|
| Brian Sonntag | D | 6389 |
| Robert B. Keene, Jr. | R | 5494 |
Pacific |
| Candidate | Party | Votes |
|---|
| Brian Sonntag | D | 6087 |
| Robert B. Keene, Jr. | R | 2400 |
Pend Oreille |
| Candidate | Party | Votes |
|---|
| Brian Sonntag | D | 2660 |
| Robert B. Keene, Jr. | R | 2032 |
Pierce |
| Candidate | Party | Votes |
|---|
| Brian Sonntag | D | 160978 |
| Robert B. Keene, Jr. | R | 67320 |
San Juan |
| Candidate | Party | Votes |
|---|
| Brian Sonntag | D | 4191 |
| Robert B. Keene, Jr. | R | 2455 |
Skagit |
| Candidate | Party | Votes |
|---|
| Brian Sonntag | D | 22090 |
| Robert B. Keene, Jr. | R | 15937 |
Skamania |
| Candidate | Party | Votes |
|---|
| Brian Sonntag | D | 2028 |
| Robert B. Keene, Jr. | R | 1405 |
Snohomish |
| Candidate | Party | Votes |
|---|
| Brian Sonntag | D | 130353 |
| Robert B. Keene, Jr. | R | 75611 |
Spokane |
| Candidate | Party | Votes |
|---|
| Brian Sonntag | D | 87834 |
| Robert B. Keene, Jr. | R | 63017 |
Stevens |
| Candidate | Party | Votes |
|---|
| Brian Sonntag | D | 7553 |
| Robert B. Keene, Jr. | R | 7543 |
Thurston |
| Candidate | Party | Votes |
|---|
| Brian Sonntag | D | 57254 |
| Robert B. Keene, Jr. | R | 25060 |
Wahkiakum |
| Candidate | Party | Votes |
|---|
| Brian Sonntag | D | 1050 |
| Robert B. Keene, Jr. | R | 602 |
Walla Walla |
| Candidate | Party | Votes |
|---|
| Brian Sonntag | D | 10234 |
| Robert B. Keene, Jr. | R | 7938 |
Whatcom |
| Candidate | Party | Votes |
|---|
| Brian Sonntag | D | 33750 |
| Robert B. Keene, Jr. | R | 25395 |
Whitman |
| Candidate | Party | Votes |
|---|
| Brian Sonntag | D | 8151 |
| Robert B. Keene, Jr. | R | 6194 |
Yakima |
| Candidate | Party | Votes |
|---|
| Brian Sonntag | D | 31619 |
| Robert B. Keene, Jr. | R | 27071 |