The incumbent is Mike Pellicciotti, a Democrat who began his term in January 2021.

[9][10] Likewise, the state treasurer directs and administers the investment of the state's operating funds and local government investment pool which, as of 2024, totaled approximately $41.816 billion in average daily balances.

[14][15][16] WSIB's assets under management totaled $197.3 billion at the close of the 2023 calendar year.

[17] Aside from being third (behind the lieutenant governor and secretary of state, respectively) in the constitutional line of succession to the office of Governor, most of the state treasurer's specific responsibilities are set forth in the Revised Code of Washington.

[18] In fact, the Washington Constitution only provides that "the treasurer shall perform such duties as shall be prescribed by law," a provision similar to the earlier enacted constitution of the neighboring state of Oregon.