# Oregon's 18th House district

District 18 of the Oregon House of Representatives is one of 60 House legislative districts in the state of Oregon. As of 2021, the boundary for the district includes portions of Clackamas and Marion counties. The district includes Aurora, Hubbard, Molalla, Silverton, and Mount Angel. The current representative for the district is Republican Rick Lewis of Silverton.

## Election results

District boundaries have changed over time. Therefore, representatives before 2021 may not represent the same constituency as today. General election results from 2000 to present are as follows:
| Year | Candidate | Party | Percent | Opponent | Party | Percent | Opponent | Party | Percent | Opponent | Party | Percent | Write-in percentage |
| 2000 | Deborah Kafoury | Democratic | 81.87% | Barry Joe Stull | Pacific Green | 11.70% | Roger Shipman | Constitution | 3.33% | Victoria Gillebeau | Socialist | 3.10% | |
| 2002 | Tootie Smith | Republican | 81.76% | Herman Joseph Baurer | Constitution | 17.37% | No third candidate | No third candidate | No third candidate | No fourth candidate | No fourth candidate | No fourth candidate | 0.87% |
| 2004 | Mac Sumner | Republican | 55.41% | Jim Gilbert | Democratic | 42.90% | Martin Soehrman | Libertarian | 1.69% | No fourth candidate | No fourth candidate | No fourth candidate | |
| 2006 | Mac Sumner | Republican | 52.62% | Jim Gilbert | Democratic | 44.92% | Roger Shipman | Constitution | 2.30% | No fourth candidate | No fourth candidate | No fourth candidate | 0.16% |
| 2008 | Vic Gilliam | Republican | 55.94% | Jim Gilbert | Democratic | 43.87% | No third candidate | No third candidate | No third candidate | No fourth candidate | No fourth candidate | No fourth candidate | 0.18% |
| 2010 | Vic Gilliam | Republican | 63.46% | Rodney Orr | Democratic | 34.17% | Martin Soehrman | Libertarian | 2.13% | No fourth candidate | No fourth candidate | No fourth candidate | 0.25% |
| 2012 | Vic Gilliam | Republican | 96.39% | Unopposed | Unopposed | Unopposed | Unopposed | Unopposed | Unopposed | Unopposed | Unopposed | Unopposed | 3.61% |
| 2014 | Vic Gilliam | Republican | 65.63% | Scott Mills | Democratic | 33.84% | No third candidate | No third candidate | No third candidate | No fourth candidate | No fourth candidate | No fourth candidate | 0.53% |
| 2016 | Vic Gilliam | Republican | 64.74% | Tom Kane | Democratic | 32.17% | Patrick Marnell | Libertarian | 2.81% | No fourth candidate | No fourth candidate | No fourth candidate | 0.28% |
| 2018 | Rick Lewis | Republican | 65.94% | Barry Shapiro | Democratic | 33.86% | No third candidate | No third candidate | No third candidate | No fourth candidate | No fourth candidate | No fourth candidate | 0.20% |
| 2020 | Rick Lewis | Republican | 70.20% | Jamie Morrison | Democratic | 29.53% | No third candidate | No third candidate | No third candidate | No fourth candidate | No fourth candidate | No fourth candidate | 0.27% |
| 2022 | Rick Lewis | Republican | 71.09% | Jesse S. Smith | Democratic | 28.79% | No third candidate | No third candidate | No third candidate | No fourth candidate | No fourth candidate | No fourth candidate | 0.12% |
| 2024 | Rick Lewis | Republican | 70.8% | Karyssa Dow | Democratic | 29.0% | No third candidate | No third candidate | No third candidate | No fourth candidate | No fourth candidate | No fourth candidate | 0.2% |
* ↑ Tootie Smith was the incumbent in this election. She previously represented District 28, but was moved to this district due to redistricting following the 2000 United States Census.
* ↑ Vic Gilliam was the incumbent in this election. He was appointed to this seat on December 28, 2007 to replace Mac Sumner, who resigned from office.
* ↑ Rick Lewis was the incumbent in this election. He was appointed to this seat on February 22, 2017 to replace Vic Gilliam, who resigned from office.