Oregon's other parties held their primaries at various dates until August 25, 2020.

[1] Primary elections — May 19, 2020 - August 25, 2020 Suzanne Bonamici Democratic Suzanne Bonamici Democratic The 1st district is located in northwestern Oregon and takes in the western Portland metro area, including the Portland suburbs of Beaverton and Hillsboro.

[2] Unions Organizations Newspapers Parties Greg Walden Republican Cliff Bentz Republican The 2nd district, the geographically largest of Oregon's six districts, covers roughly two-thirds of the state east of the Cascades, encompassing the central, eastern, and southern regions of the state, including Bend and Medford.

[28] Newspapers Organizations U.S. Representative State legislators Organizations Earl Blumenauer Democratic Earl Blumenauer Democratic The 3rd district encompasses the eastern Portland metro area, taking in Portland and Gresham.

Unions Organizations Newspapers Unions Organizations Parties Publications Peter DeFazio Democratic Peter DeFazio Democratic The 4th district takes in the southern Willamette Valley and the South Coast, including Eugene, Corvallis, and Roseburg.