District 23 of the Oregon State Senate comprises parts of Portland and the entirety of Maywood Park in Multnomah County. The district is composed of Oregon House districts 45 and 46. It is currently represented by Democrat Michael Dembrow of Portland.
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 Southern Oregon; from 2003 until 2013, it shifted to its current location and covered more of inner northeast Portland; and from 2013 until 2023, it covered more land east of I-205.
The current district is similar to its previous iterations, but does not cover any land east of I=205 not in the Lents neighborhood and extends south to the border of Multnomah County by adding the Brentwood-Darlington neighborhood.
The results are as follows:[1]
| Year | Candidate | Party | Percent | Opponent | Party | Percent | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1984 | John Kitzhaber | Democratic | 57.1% | Sylvia Henry | Republican | 42.9% | ||||||
| 1988 | John Kitzhaber | Democratic | 60.4% | Bill Fisher | Republican | 39.6% | ||||||
| 1992 | Rod Johnson | Republican | 67.1% | Judi Pettengill | Democratic | 32.9% | ||||||
| 1996 | Bill Fisher | Republican | 65.3% | Donald A. Dole | Democratic | 34.7% | ||||||
| 2000 | Bill Fisher | Republican | 69.3% | Larry Mack | Democratic | 30.7% | ||||||
| 2004 | Avel Gordly | Democratic | 88.7% | Lou Burbach | Constitution | 11.2% | ||||||
| 2008 | Jackie Dingfelder | Democratic | 97.7% | Unopposed | ||||||||
| 2012 | Jackie Dingfelder | Democratic | 80.1% | Tracy Olsen | Independent | 19.2% | ||||||
| 2014 | Michael Dembrow | Democratic | 86.3% | Michael Marvin | Libertarian | 12.8% | ||||||
| 2016 | Michael Dembrow | Democratic | 97.8% | Unopposed | ||||||||
| 2020 | Michael Dembrow | Democratic | 97.03% | |||||||||