The Municipality of Nyngan was proclaimed on 17 February 1891 with Nyngan having a population of 1,355. In 1906 the Bogan Shire was incorporated. The Bogan Shire and the Nyngan municipality amalgamated in 1972.
The Mayor of Bogan Shire Council is Cr. Ray Donald, who is unaligned with any political party.
Bogan 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 Mayor is elected by the Councillors at the first meeting of the Council. The most recent election was held on 8 September 2012, and the makeup of the Council is as follows:
Bogan Shire is supported by agricultural production, grazing of sheep and cattle and cropping, primarily wheat. The area averages about 17 inches (430 mm) per year. However, there is great variability in the rainfall. In 1888 Nyngan had only 7.5 inches (190 mm) recorded, while in 1950 it had nearly 45 inches (1,100 mm).