The 2020 Oregon House of Representatives election were held on Tuesday, November 3, 2020, with the primary election being held on May 19, 2020. Voters in the 60 districts of the Oregon House of Representatives elected their representatives. The elections coincided with the elections for other offices, including for the Oregon State Senate and for U.S. President.
The Democratic Party kept their majority. The Oregon Legislature does not have term limits.
11 new representatives were elected this cycle (3 Republicans and 8 Democrats). 10 were elected to seats open due to retirements while 1 (Jason Kropf of Bend) defeated an incumbent.
Democrats have held the Oregon House since 2007 and the chamber was not considered competitive in 2020.
3 Republicans and 7 Democrats did not run for re-election to their House seat this cycle.
One incumbent was defeated: Deschutes County deputy district attorney and Democrat Jason Kropf defeated incumbent Republican Cheri Helt in District 54.
Meanwhile, Republicans Boomer Wright and Suzanne Weber won elections for vacant seats in District 9 and District 32, respectively, bringing Republicans' net seat gain to +1.
The 60 members of the Oregon State House are elected from single-member districts by first-past-the-post voting to two-year terms. Contested nominations of the Democratic and Republican parties for each district were determined by an open primary election. Minor-party and independent candidates were nominated by petition and write-in candidates had to file a request with the Secretary of State's office for votes for them to be counted.
Districts where the margin of victory was under 10%: