Incumbent Democrat Suzanne Bonamici, who had represented the district since winning a special election in 2012, ran for re-election.

The 2nd district is located east of the Willamette Valley and covers roughly two-thirds of the state.

[8] [9] The 3rd district most of Multnomah County, including Portland east of the Willamette River, Gresham and Troutdale.

Incumbent Democrat Earl Blumenauer, who had represented the district since 1996, ran for re-election.

The 5th district includes Oregon's central coast through Salem, north to the southern Portland suburbs and east to the summit of Mount Hood.