MLA and MLC boundaries are updated every four years prior to the state elections. The current electoral dataset depicts the State Electoral Districts and Regions that were used in the State Election of March 2013. These districts and regions are described by technical description, and were published under the Electoral Act 1907, in the Govt Gazette on 10th October 2011. The current state electoral dataset that depicts the MLA District and the MLC Region boundaries remain the current dataset until the next state election is declared. Therefore, if a By-election is declared for any district prior to the next State General Election, this is the dataset that must be used.
WA State electoral boundary - MLC. For electoral purposes the State is divided into 6 electoral regions. Each region returns six Members to the Legislative Council (upper house) of the government of Western Australia. All MLC regions consist of complete MLA districts, ranging from 4 districts to 15 districts in size. All boundaries are reviewed two years after a general election. SCDB usage code 161.