Five commissioner districts — Requirements.
RCW 54.40.010
in effectA five commissioner public utility district is a district that (1) either: (a) Has or had a license from the federal power commission to construct a hydroelectric project of an estimated cost of more than two hundred and fifty million dollars, including interest during construction; or (b) has a population of five hundred thousand or more; and (2) voters of the district approved a ballot proposition authorizing the district to become a five commissioner district as provided under RCW 54.40.040 . All other public utility districts shall be known as three commissioner districts.
A five commissioner public utility district is a district that (1) either: (a) Has or had a license from the federal power commission to construct a hydroelectric project of an estimated cost of more than two hundred and fifty million dollars, including interest during construction; or (b) has a population of five hundred thousand or more; and (2) voters of the district approved a ballot proposition authorizing the district to become a five commissioner district as provided under RCW 54.40.040 . All other public utility districts shall be known as three commissioner districts.
Source: WA Statutes (Official Site)URL: https://app.leg.wa.gov/RCW/default.aspx?cite=54.40&full=trueFetched: 6/29/2026