Washington's congressional districts

The following is a list of the ten congressional districts in the U.S. state of Washington. From the time that Washington Territory was formed in 1853, through statehood in 1889, Washington Territory elected an at-large non-voting Delegate to the United States House of Representatives. At different times in its history, the state of Washington has also elected one or more representatives At-large statewide. Washington gained its 10th district following reapportionment after the 2010 census.