# Oregon's 30th Senate district

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 Mike McLane of Powell Butte.

## Election results

District boundaries have changed over time. Therefore, senators before 2013 may not represent the same constituency as today. From 1993 until 2003, it covered a slightly different area in eastern Oregon; from 2003 until 2013, it extended to cover Gilliam, Jefferson, Sherman, Wasco, and Wheeler counties and parts of Deschutes and Lake counties; and from 2013 until 2023, it lost all of these gains except western Wasco County, northern Deschutes County, and Jefferson County.
The current district is more compact and adds all of Crook and Lake counties, which have historically been a part of other districts, while losing parts of northern Jefferson County and northern Deschutes County as well as all of Wasco and Wheeler counties.
The results are as follows:
| Year | Candidate | Party | Percent | Opponent | Party | Percent | Opponent | Party | Percent |
| 1984 | Gene Timms | Republican | 51.6% | Mark Stringer | Democratic | 48.4% | No third candidate | No third candidate | No third candidate |
| 1988 | Gene Timms | Republican | | Unopposed | Unopposed | Unopposed |
| 1992 | Gene Timms | Republican | 64.0% | Trish Seller | Democratic | 36.0% | No third candidate | No third candidate | No third candidate |
| 1996 | Gene Timms | Republican | 70.8% | Jennifer Carper | Democratic | 27.7% | Rohn Webb | Socialist | 1.4% |
| 2000 | Steve Harper | Republican | 71.4% | Debra M. James | Democratic | 28.4% | No third candidate | No third candidate | No third candidate |
| 2004 | Ted Ferrioli | Republican | 98.0% | Unopposed | Unopposed | Unopposed | Unopposed | Unopposed | Unopposed |
| 2008 | Ted Ferrioli | Republican | 97.9% | Unopposed | Unopposed | Unopposed | Unopposed | Unopposed | Unopposed |
| 2012 | Ted Ferrioli | Republican | 98.3% | Unopposed | Unopposed | Unopposed | Unopposed | Unopposed | Unopposed |
| 2016 | Ted Ferrioli | Republican | 70.1% | Mark Stringer | Democratic | 29.6% | No third candidate | No third candidate | No third candidate |
| 2018 | Cliff Bentz | Republican | 71.7% | Solea Kabakov | Democratic | 28.2% | No third candidate | No third candidate | No third candidate |
| 2020 | Lynn Findley | Republican | 66.9% | Carina Miller | Democratic | 33.0% | No third candidate | No third candidate | No third candidate |
| 2024 | Mike McLane | Republican | 98.4% | Unopposed | Unopposed | Unopposed | Unopposed | Unopposed | Unopposed |
* ↑ Off-cycle election due to the resignation of Ted Ferrioli in 2017 after his appointment by Governor Kate Brown to the Northwest Power and Conservation Council. Cliff Bentz was the incumbent in this election as he was appointed to fill the vacant seat.
* ↑ Off-cycle election due to the resignation of Cliff Bentz in 2020 after his election to the House of Representatives representing Oregon's 2nd district. Lynn Findley was the incumbent in this election as he was appointed to fill the vacant seat.