Frank Chopp Democratic Frank Chopp Democratic The 2018 Washington House of Representatives elections took place as part of the biennial United States elections.

A statewide map of Washington's state legislative districts is provided by the Washington State Legislature here, Archived 2018-10-24 at the Wayback Machine.

A top two primary election on August 7, 2018, determined which candidates appeared on the November 6 general election ballot.

Each candidate is allowed to write in their party preference so that it appears as they desire on the ballot.

Only three districts, the 10th, 19th, and 42nd, elected their two representatives from different parties.