The City operates under the Council-Manager form of government. The City's four Council Members are elected at-large to four year terms in alternate slates of two, every two years. The City's Mayor is elected at-large every two years. The Mayor presides over Council meetings and has one vote. Council Members also serve as Board Members of the Ventura County Waterworks District No. 8 and the Simi Valley Library Board of Trustees.
The City Council appoints both the City Manager and the City Attorney. The City Manager heads the executive branch of the government, implements City Council directives and policies, and manages the administration and operational functions through the various department heads. The City Manager is responsible for the appointment of department heads, and also serves as the City Clerk and City Treasurer.
The organizational chart for the City of Simi Valley is available using the following link: