District 9 of the Oregon State Senate comprises the rural areas in eastern Marion and Linn counties as well as southern Clackamas County. It is composed of Oregon House districts 17 and 18. It is currently represented by Republican Fred Girod of Stayton.
District boundaries have changed over time. Therefore, senators before 2021 may not represent the same constituency as today. From 1993 until 2003, the district covered parts of east Portland, and from 2003 until 2023, it covered about the same region as currently with minor changes. The current district is similar to the previous iteration with the inclusion of more of northern Marion County, including St. Paul, along with parts of Canby while losing much of its territory in Linn County, including Lebanon and Sweet Home.
The results are as follows [1] :
| Year | Candidate | Party | Percent | Opponent | Party | Percent | Opponent | Party | Percent |
|---|---|---|---|---|---|---|---|---|---|
| 1982 | Frank L. Roberts | Democratic | 56.4% | Paul Howe | Republican | 43.6% | No third candidate | ||
| 1986 | Frank L. Roberts | Democratic | 64.2% | Herb Brown | Republican | 35.8% | |||
| 1990 | Frank L. Roberts | Democratic | 59.4% | Dan Phegley | Republican | 40.6% | |||
| 1994 | Randy Leonard | Democratic | 100.0% | Unopposed | |||||
| 1998 | Frank Shields | Democratic | 100.0% | ||||||
| 2004 | Roger Beyer | Republican | 83.6% | Herman Joseph Baurer | Constitution | 16.4% | No third candidate | ||
| 2008 | Fred Girod | Republican | 61.1% | Bob McDonald | Democratic | 38.7% | |||
| 2012 | Fred Girod | Republican | 64.2% | Steven H. Frank | Democratic | 35.6% | |||
| 2016 | Fred Girod | Republican | 68.7% | Richard Harisay | Democratic | 26.9% | Jack Stillwell | Libertarian | 4.2% |
| 2020 | Fred Girod | Republican | 67.0% | Jim Hinsvark | Democratic | 30.1% | Patrick Marnell | Libertarian | 2.8% |
Oregon's 5th congressional district stretches from the Southeast suburbs of Portland through the eastern half of the Willamette Valley and then reaches across the Cascades to take in Sisters and Bend. It includes a sliver of Multnomah County, the majority of Clackamas County, the rural eastern portion of Marion County, all of Linn County, a very small section of southwest Jefferson County, and the populated northwest portion of Deschutes County. It was significantly redrawn when Oregon gained a 6th congressional district after the 2020 census.
District 1 of the Oregon State Senate comprises all of Curry County as well as southern Coos County and central Douglas County. It is composed of Oregon House districts 1 and 2. It is currently represented by Republican David Brock Smith of Port Orford, who was appointed to the seat on January 11, 2023 after the resignation of Dallas Heard.
District 5 of the Oregon State Senate comprises all of Lincoln County on the central Oregon Coast, as well as parts of Benton, Coos, Douglas, and Lane counties. It is composed of Oregon House districts 9 and 10. It is currently represented by Republican Dick Anderson of Lincoln City.
District 6 of the Oregon State Senate includes most of Linn County as well as eastern Lane County and a sliver of southern Marion County. It is composed of Oregon House districts 11 and 12. It is currently represented by Republican Cedric Ross Hayden of Fall Creek.
District 8 of the Oregon State Senate comprises northwestern Linn County, northeastern Benton County, and southern Marion County centered around Albany and Corvallis. It is composed of Oregon House districts 15 and 16. It is currently represented by Democrat Sara Gelser Blouin of Corvallis.
District 10 of the Oregon State Senate comprises parts of Marion and Polk counties, including much of south and west Salem as well as Independence and Monmouth. The district is composed of Oregon House districts 19 and 20.
District 11 of the Oregon State Senate comprises parts of Marion County, including Keizer, Woodburn and much of Salem. It contains Oregon House districts 21 and 22. It is currently represented by Republican Kim Thatcher of Keizer.
District 12 of the Oregon State Senate comprises parts of Yamhill and Polk counties centered around Dallas, McMinnville, and Newberg. It is composed of Oregon House districts 23 and 24. It is currently represented by Republican Brian Boquist of Dallas.
District 13 of the Oregon State Senate comprises parts of Clackamas, Washington, and Yamhill counties centered around Sherwood, Tigard, and Wilsonville. It contains Oregon House districts 25 and 26. It is currently represented by Democrat Aaron Woods of Wilsonville.
Oregon's 14th Senate district comprises parts of Washington and Multnomah counties, including much of Beaverton and southwest Portland. It contains Oregon House districts 27 and 28. It is currently represented by Democrat Kate Lieber of Beaverton.
District 15 of the Oregon State Senate comprises central Washington County, including most of Hillsboro as well as Forest Grove and Cornelius. It is composed of Oregon House districts 29 and 30. It is currently represented by Democrat Janeen Sollman of Hillsboro.
District 16 of the Oregon State Senate comprises all of Clatsop, Columbia, and Tillamook counties as well as western portions of Multnomah and Washington counties and a small sliver of northern Yamhill County. It consists of Oregon House districts 31 and 32. It is currently represented by Republican Suzanne Weber.
District 19 of the Oregon State Senate comprises northwestern Clackamas, southwestern Multnomah, and southeastern Washington counties and includes Lake Oswego, Tualatin, and West Linn as well as Portland's South Waterfront. It is composed of Oregon House districts 37 and 38. It is currently represented by Democrat Rob Wagner of Lake Oswego.
Oregon's 21st Senate district comprises parts of Clackamas and Multnomah counties, including Milwaukie and Oak Grove as well as parts of southeast Portland. It is composed of Oregon House districts 41 and 42. The district is currently represented by Democrat Kathleen Taylor of Portland.
District 24 of the Oregon State Senate comprises parts of Clackamas and Multnomah counties. Since January 2021, it has been represented by Democrat Kayse Jama, who was appointed unanimously by the Clackamas and Multnomah County Boards of Commissioners to replace Shemia Fagan after she was elected Oregon Secretary of State.
District 26 of the Oregon State Senate comprises all of Hood River County, as well as parts of Clackamas, Multnomah, and Wasco counties. The district is composed of Oregon House districts 51 and 52. It is currently represented by Republican Daniel Bonham of Hood River.
District 27 of the Oregon State Senate comprises parts of Deschutes County centered around greater Bend. The district is composed of Oregon House districts 53 and 54. It is currently represented by Republican Tim Knopp of Bend.
District 28 of the Oregon State Senate comprises all of Klamath County as well as parts of Deschutes and Jackson counties. The district is composed of Oregon House districts 55 and 56. It is currently represented by Republican Dennis Linthicum of Bonanza.
District 29 of the Oregon State Senate comprises all of Gilliam, Morrow, Sherman, Umatilla, Union, Wallowa, and Wheeler counties, as well as parts of Clackamas, Jefferson, Marion, and Wasco counties. The district is composed of Oregon House districts 57 and 58. It is currently represented by Republican Bill Hansell of Athena.
District 30 of the Oregon State Senate comprises all of Baker, Crook, Grant, Harney, Lake, and Malheur counties, as well as parts of Deschutes and Jefferson counties. The district is composed of Oregon House districts 59 and 60 and is the largest state Senate district in Oregon. It is currently represented by Republican Lynn Findley of Vale.