Ada County, Idaho is governed by a 3-member governing board. The current county commissioner is Ryan Davidson. See all 9 named officeholders and how to reach each office.
Population: 546,141.
Selected officeholders: County Commissioner: Ryan Davidson · County Commissioner: Rod W. Beck · County Commissioner: Tom Dayley · Prosecuting Attorney: Jan M. Bennetts · Sheriff: Matt Clifford · County Clerk: Trent Tripple.