Politics of Western Australia

Western Australia politics takes place in context of a constitutional monarchy with a bicameral parliamentary system, and like other Australian states, Western Australia is part of the federation known as the Commonwealth of Australia.

The main parties are the governing Labor Party and the two Opposition parties (the National Party and the Liberal Party). Other minor political parties include the Greens, Western Australia Party, Shooters, Fishers and Farmers Party, Liberal Democratic Party, Legalise Cannabis WA Party, Pauline Hanson's One Nation and Australian Christians.

Premier of Western Australia
The premier of Western Australia is the head of government of the state of Western Australia. The role of premier at a state level is similar to the role of the prime minister of Australia at a federal level. The premier leads the executive branch of the Government of Western Australia and is accountable to the Parliament of Western Australia. The premier is appointed by the governor of Western Australia. By convention, the governor appoints as premier whoever has the support of the majority of the Western Australian Legislative Assembly. In practice, this means that the premier is the leader of the political party or group of parties with a majority of seats in the Legislative Assembly (lower house). Since Western Australia achieved self-governance in 1890, there have been 31 premiers. Roger Cook is the current premier, having been appointed to the position on 8 June 2023.

State government
The nominal head of the Government of Western Australia is the King of Australia, represented in the state by the Governor of Western Australia. Legislative power rests with the Crown and the two houses of the Parliament of Western Australia. The powers and responsibilities of the parliament are defined in the Constitution Act 1889.

Parliament of Western Australia
The Parliament of Western Australia is bicameral, consisting of a lower and an upper house.

The Western Australian Legislative Assembly (lower house) is composed of 59 members of parliament, each of whom represent a single electoral district and are elected using a preferential voting system. The Legislative Assembly sits for fixed four-year terms. The leader of the party with a majority in the Legislative Assembly (or with the confidence of the Assembly) is appointed by the Governor as the premier of Western Australia.

The Western Australian Legislative Council (upper house) has 36 members (or MLCs), representing six electoral regions. Six members are elected for each province using a proportional voting system.

General elections are held every four years, electing the entire Legislative Assembly and Legislative Council. The next state election is scheduled for March 2025.

Federal politics
Western Australia is divided into 15 federal electoral divisions, each represented by a seat in the Australian House of Representatives. Like other Australian states, Western Australia is represented by twelve Senators in the Australian Senate, with six of those Senators elected for two three-year Senate terms at each half-Senate election.

Historically, most federal elections have already been "decided" by the time the polls close in Western Australia. The only times since the mid-20th century when the state has decided an election were:
 * 1998, when the first returns from the state assured a second term for John Howard.
 * 2010, when the victory of a state Nationals candidate who did not identify with the federal party allowed Julia Gillard to stay in office with a minority government.
 * 2022, when significant swings to Labor in a number of electorates helped Anthony Albanese become prime minister.

Notable Western Australia political figures

 * John Forrest – first premier of Western Australia
 * Edith Cowan – first Australian woman to serve as a member of parliament
 * John Curtin – first and only Prime Minister of Australia to represent an electorate outside the eastern states
 * Carmen Lawrence – first woman to become premier of a state of the Commonwealth of Australia
 * Jo Vallentine – first person in the world elected to a parliament on a nuclear disarmament platform
 * Mark McGowan – former premier of Western Australia
 * Julie Bishop – first woman to be Foreign Minister and deputy leader of the federal Liberal Party
 * Mia Davies – first woman to lead a branch of the Nationals at state or federal level and become State Opposition leader
 * Ben Wyatt – first Aboriginal treasurer in an Australian state or federal government
 * Ken Wyatt – first Aboriginal member of the House of Representatives and the first Indigenous federal minister
 * Anne Aly – first female federal parliamentarian of Muslim faith