Koidu town is one of Sierra Leone's six municipalities and is governed by a directly elected city council, headed by a mayor, in whom executive authority is vested. The mayor is responsible for the general management of the city. The mayor is elected directly by the residents of Koidutown every four years in a municipal elections. The current mayor of Koidu Town is Saa Emerson Lamina of the ruling All Peoples Congress party APC. He was suspended by the national government in 2016, following the release of the Panama Papers and publication of an article quoting him complaining about the diamond mine's operation and failure to pay taxes. The City Council then elected Aiah Bartholomew Baima Komba Acting Mayor of Koidu.