Washington Policy Center

The Washington Policy Center (WPC) is a think tank based in the state of Washington. The organization's stated mission is "to promote sound public policy based on free-market solutions." It has a statewide staff of 25 and offices in Seattle, Olympia, Spokane, and Richland. The organization is divided into eight research centers: Agriculture, Education, Environment, Government Reform, Health Care, Small Business, Transportation, and Worker Rights. WPC is an affiliate of the State Policy Network, a nonprofit organization that serves as a network for conservative and libertarian think tanks focusing on state-level policy in the United States.

WPC operates a free public-service website, WashingtonVotes.org, which tracks what bills state legislators introduce and support. WashingtonVotes.org provides a roll call service to state media outlets while the legislature is in session.

The organization uncovered an error in Sound Transit's defense in a $500 million class-action lawsuit filed by taxpayers regarding the collection of car tab tax charges. The state Attorney General's office acknowledged the error and declined to take Sound Transit's side in the case, pulling out just one hour prior to a scheduled hearing before the State Supreme Court. The constitutionality of the car-tab collection levied by Sound Transit was upheld by the State Supreme Court in February 2020.