Oregon's 5th congressional district stretches from the Southeast corner of Portland through the eastern half of the Willamette Valley and then reaches across the Cascades to take in Sisters and Bend.

It was significantly redrawn when Oregon gained a 6th congressional district after the 2020 census.

In 2002, the district shrank slightly in area due to redistricting.

It is the most evenly divided district in partisan terms in Oregon, and has been through many iterations.

Parts of western Marion County, including the city of Salem, were also lost to the new 6th district.