 The council for the enlarged Shire of Boonah was subdivided into three divisions, each electing three councillors.In March 2000, Boonah added to its area part of the City of Ipswich, including Mount Walker, Warrill View and Rosevale, and the divisions were abolished, with a seven-member council representing the entire district.On 15 March 2008, under the "Local Government (Reform Implementation) Act 2007" passed by the Parliament of Queensland on 10 August 2007, Boonah merged with the southern rural section of the Shire of Beaudesert and the Harrisville–Peak Crossing section of the City of Ipswich to form the Scenic Rim Region.