Summary information on parliamentary government, elections and periods in office

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Summary information on Elections for the Western Australian Legislative Assembly

Western Australia has a parliamentary system of government. This makes elections for the Western Australian Legislative Assembly doubly important; voters are choosing both a representative for their local electoral district, and someone who will support or oppose the current government.

The idea of voting for a representative is straightforward, but running an election for the Legislative Assembly is a complicated process requiring an extensive body of administrative rules. This includes rules about who is eligible to vote and how the votes should be cast and counted. The table below gives a brief summary of the electoral systems used for the Legislative Assembly since 1890, and information on the number of electors on the roll (registered voters), the number of electors in contested seats, the number of voters who cast a ballot, the electoral turnout (the rate of voting in contested seats), and the rate of informal (invalid) voting.

Note that the Western Australian Parliament is bicameral, the upper house being the Western Australian Legislative Council. The Legislative Council has its own electoral rules which are not included in this summary; information on elections and representation for the Western Australian Legislative Council can be found in the 'Elections' component of the database.

Elections and electoral rules

Sources and references

The summary information on this page has been compiled from records in the Australian Politics and Elections Database at the University of Western Australia. The individual records for each general election and period in office in Western Australia -- available through this website -- include sources and references.