[1] Wadja (also known as Wadjigu, Wadya, Wadjainngo, Mandalgu, and Wadjigun) is an Australian Aboriginal language in Central Queensland.

The language region includes the local government areas of the Aboriginal Shire of Woorabinda and Central Highlands Region, including the Blackdown Tableland, the Comet River, and the Expedition Range, and the towns of Woorabinda, Springsure and Rolleston.

[5] The Central Highlands Region was created in March 2008 as a result of the report of the Local Government Reform Commission released in July 2007.

[6] The report recommended that the new local government area should not be divided into wards and should elect eight councillors and a mayor.

Notes: 1 – partially shared with Isaac Region (former Belyando Shire) The Central Highlands Region operates public libraries at Bauhinia, Blackwater, Capella, Dingo, Duaringa, Emerald, Rubyvale (The Gemfields), Rolleston, Springsure and Tieri.