The district stretches along the Puget Sound from the Canada–US border to King County.

Statewide officials State legislators Local officials Jaime Herrera Beutler Republican Jaime Herrera Beutler Republican Incumbent Republican Jaime Herrera Beutler, who had represented the district since 2011, ran for re-election.

The district had a PVI of R+7, and encompasses the eastern portion of the state.

The district had a PVI of D+5, and encompasses the Olympic Peninsula and surrounding areas, as well as most of Tacoma.

An anonymous post to Reddit in October 2015 claimed that McDermott was planning on retiring and endorsing current Seattle Mayor Ed Murray to succeed him.

Representatives Statewide officials State legislators Organizations Local officials Dave Reichert Republican Dave Reichert Republican Incumbent Republican Dave Reichert, who had represented the district since 2005, ran for re-election.

The district had a PVI of R+1, and includes the Eastside suburbs of Seattle and portions of the center of the state.

The district had a PVI of D+5, and encompasses the state capital of Olympia and surrounding areas.