Island | ||
| Candidate | Party | Votes |
|---|---|---|
| Rick Larsen | D | 7878 |
| Doug Roulstone | R | 6096 |
| Teri Moats | R | 1708 |
King | ||
| Candidate | Party | Votes |
| Rick Larsen | D | 68 |
| Doug Roulstone | R | 22 |
| Teri Moats | R | 12 |
San Juan | ||
| Candidate | Party | Votes |
| Rick Larsen | D | 3268 |
| Doug Roulstone | R | 919 |
| Teri Moats | R | 272 |
Skagit | ||
| Candidate | Party | Votes |
| Rick Larsen | D | 11783 |
| Doug Roulstone | R | 6753 |
| Teri Moats | R | 2632 |
Snohomish | ||
| Candidate | Party | Votes |
| Rick Larsen | D | 28878 |
| Doug Roulstone | R | 15926 |
| Teri Moats | R | 4856 |
Whatcom | ||
| Candidate | Party | Votes |
| Rick Larsen | D | 18787 |
| Doug Roulstone | R | 10045 |
| Teri Moats | R | 2007 |