The Borough of Marianna is governed under the Mayor-Council form of government. Five council members and the Mayor are elected by the citizens; Members of Council are elected to a four-year term and serve staggered terms. The Mayor is also elected to a four-year term and may attend and participate in all Council meetings, but votes only in case of a tie vote of Council. The Council is vested with the legislative powers of the Borough – setting municipal policy, enacting local ordinances, adopting the annual budget, establishing the tax rate, appointing Borough officials, etc.