Gundagai was declared a Municipality in
1889, and
Adjungbilly Shire Council created in
1906 to administer the district. The Municipality of Gundagai and the Adjungbilly Shire were amalgamated on 1 January 1924 to form the Gundagai Shire Council, which was the administrative body of the area. A
2015 review of local government boundaries recommended that Gundagai Shire merge with adjoining councils. The
NSW Government considered two proposals. The first proposed a merger between the Gundagai and
Cootamundra shires to form a new council with an area of and support a population of approximately . The alternative, proposed by
Harden Shire on 28 February 2016, was for an amalgamation of the Cootamundra, Gundagai and Harden shires. Following an independent review, on 12 May 2016 the
Minister for Local Government announced the dissolution of the Cootamunda and Gundagai shires, with their area merging to establish the
Gundagai Council. == Council ==