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 boundaries have changed over time. Therefore, senators before 2013 may not represent the same constituency as today. From 1993 until 2003, the district covered parts of Clackamas County; from 2003 until 2013, it shifted to cover most of Beaverton and Aloha south of Beaverton-Hillsdale Highway as well as Sylvan and West Slope; and from 2013 until 2023, it lost much of its land in Multnomah County while gaining the Progress Ridge neighborhood of south Beaverton.
The current district is slightly reconfigured, gaining back much of southwest Portland between the Sunset Highway and SW Taylors Ferry Road/I-5, including parts of downtown Portland, and adding Cedar Hills, but losing all of Aloha and much of Beaverton, including the Central Beaverton neighborhood.
The results are as follows:[1]
| Year | Candidate | Party | Percent | Opponent | Party | Percent | Opponent | Party | Percent | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1982 | Steve Starkovich | Democratic | 56.8% | Joe Davis | Republican | 43.2% | No third candidate | |||||||||||
| 1986 | Bob Kintigh | Republican | 51.3% | Steve Starkovich | Democratic | 48.7% | ||||||||||||
| 1990 | Bob Kintigh | Republican | 53.3% | Jack Elder | Democratic | 46.7% | ||||||||||||
| 1994 | Ken Baker | Republican | 54.0% | Jay Watts | Democratic | 40.8% | Lindsey Bradshaw | Libertarian | 5.2% | |||||||||
| 1998 | Rick Metsger | Democratic | 56.4% | Jerry Grisham | Republican | 43.6% | No third candidate | |||||||||||
| 2004 | Ryan Deckert | Democratic | 64.0% | Jay Omdahl | Republican | 36.0% | ||||||||||||
| 2008 | Mark Hass | Democratic | 68.0% | Lisa Michaels | Republican | 31.9% | ||||||||||||
| 2012 | Mark Hass | Democratic | 60.4% | Gary Coe | Republican | 36.7% | Mark Vetanen | Libertarian | 2.7% | |||||||||
| 2016 | Mark Hass | Democratic | 97.2% | Unopposed | ||||||||||||||
| 2020 | Kate Lieber | Democratic | 69.0% | Harmony Mulkey | Republican | 30.8% | No third candidate | |||||||||||