Asotin | ||
| Candidate | Party | Votes |
|---|---|---|
| Dave Mastin | D | 1535 |
| Bob Hershman | R | 1278 |
Columbia | ||
| Candidate | Party | Votes |
| Dave Mastin | D | 975 |
| Bob Hershman | R | 795 |
Franklin | ||
| Candidate | Party | Votes |
| Dave Mastin | D | 5437 |
| Bob Hershman | R | 4523 |
Garfield | ||
| Candidate | Party | Votes |
| Dave Mastin | D | 622 |
| Bob Hershman | R | 505 |
Walla Walla | ||
| Candidate | Party | Votes |
| Dave Mastin | D | 10419 |
| Bob Hershman | R | 6381 |