| 3rd District | Democrat | Alan Bates |
| 3rd District | Republican | Dave Dotterrer |
| 4th District | Republican | Marilyn Kittelman |
| 4th District | Democrat | Floyd Prozanski |
| 6th District | Democrat | Lee Beyer |
| 7th District | Republican | Karen Bodner |
| 7th District | Democrat | Chris Edwards |
| 8th District | Republican | Frank Morse |
| 8th District | Democrat | Dan Rayfield |
| 15th District | Democrat | Chuck Riley |
| 15th District | Republican | Bruce Starr |
| 16th District | Republican | Bob Horning |
| 16th District | Democrat | Betsy Johnson |
| 17th District | Democrat | Suzanne Bonamici |
| 17th District | Republican | Stevan C Kirkpatrick |
| 19th District | Democrat | Richard Devlin |
| 19th District | Republican | Steve Griffith |
| 19th District | Republican | Mary Kremer |
| 20th District | Republican | Alan R Olsen |
| 20th District | Democrat | Martha Schrader |
| 22nd District | Republican | Dwayne E Runyan |
| 22nd District | Democrat | Chip Shields |
| 22nd District | Republican | Marcus W Tempey |
| 24th District | Democrat | Ron McCarty |
| 24th District | Democrat | Rod Monroe |
| 24th District | Democrat | Dave Mowry |
| 24th District | Republican | Rob Wheeler |
| 26th District | Democrat | Brent Barton |
| 26th District | Republican | Chuck Thomsen |
State Senate Filings
March 10, 2010
