The Shire was created in 2004 by the amalgamation of Coolah and Coonabarabran Shire councils. Following amalgamation, the Shire was run by an administrator, until elections were held in March 2005.
Current composition and election method
Warrumbungle Shire Council is composed of nine councillors elected proportionally as a single ward. All councillors are elected for a fixed four-year term of office. The most recent election was held in 2021, and the makeup of the council is as follows:[9]
The mayor is elected by the councillors every two years. At the last mayoral election held 21 September 2023, Cr Doolan was elected as mayor and Cr Rindfleish elected as deputy mayor.