What is the Political Structure of Western Australia?

1. The Parliamentary System

At the heart of WA’s political structure is a parliamentary system based on the Westminster model. This system comprises two primary components: the Crown (represented by the Governor) and the Parliament of Western Australia.

Political Structure of Western Australia

2. The Parliament of Western Australia

The Parliament of Western Australia is bicameral, consisting of two houses:

  • The Legislative Assembly (Lower House): This house is the primary legislative body, where government is formed. Members of the Legislative Assembly (MLAs) are elected by the people. The party or coalition with the majority of seats in the Assembly forms the government, and its leader becomes the Premier of Western Australia.
  • The Legislative Council (Upper House): Serving as a house of review, the Legislative Council scrutinises legislation passed by the Assembly. Members of the Legislative Council (MLCs) are also elected by the people, representing various regions of the state.

3. The Executive

The Executive comprises the Governor, the Premier, and the Cabinet. The Governor is the Queen’s representative in Western Australia, playing a largely ceremonial role.

The Premier, as the head of the government, leads the Cabinet, which consists of ministers responsible for various portfolios. These ministers are typically MLAs or MLCs and are in charge of specific areas of government policy and administration.

4. Local Government

Beyond the state government, WA’s political structure includes local government entities – shires, towns, and cities. These local governments handle community needs like planning, infrastructure, and local services.

They operate independently of the state government but must adhere to the regulations and laws set by the state.

5. Judicial System

The judicial system in Western Australia, comprising courts like the Supreme Court, District Court, and Magistrates Court, functions independently of the Parliament and Executive. It interprets and applies the law, ensuring justice is served according to the principles of law and equity.

Understanding the political structure of Western Australia (WA) is crucial for grasping how governance and decision making processes operate within the state.

Western Australia, like other Australian states, has a political system that is a blend of parliamentary and federal elements, reflecting its status as a state within the Commonwealth of Australia.


Within this structure, various political parties, including major ones like the Australian Labor Party, the Liberal Party, and smaller parties such as the Australian Christian Party in Western Australia, the Nationals and the Greens, play vital roles.

These parties, along with others like the Australian Christians, contribute to the state’s vibrant democracy by offering diverse perspectives and representing different segments of the population.

This diversity in political representation is a cornerstone of Western Australia’s democratic and political system, ensuring a well rounded approach to governance and policymaking.

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