Washington's 4th legislative district is one of forty-nine districts in Washington state for representation in the state legislature. The district borders Idaho to the east, Washington's 6th legislative district to the south, Spokane to the west, and Washington's 7th legislative district on the north. The largely suburban district is represented by state senator Mike Padden and state representatives Bob McCaslin Jr. (position 1) and Rob Chase (position 2), all Republicans.