2021 Western Australian state election

The **2021 Western Australian state election** was held on 13 March 2021 to elect the 41st Parliament of Western Australia, including all 59 seats in the Legislative Assembly and all 36 seats in the Legislative Council. It was conducted by the Western Australian Electoral Commission (WAEC).

The incumbent Labor government, led by Premier Mark McGowan, was re-elected in a landslide. They were opposed by the Liberal Party, led by Zak Kirkup, and the National Party, led by Mia Davies. The Liberals lost all but two seats, while the Nationals won four, making the Nationals the official Opposition. After the election, the two parties formed an alliance, called the Western Australian Opposition Alliance, similar to the Coalition, with the Nationals as the senior partner and the Liberals as the junior partner. Labor won the largest majority government (89.8% of seats) and the largest two-party-preferred vote (69.7%) ever won by any party at any election in Australian history. For the first time, they had a majority in both chambers of Parliament.

## Infobox (election)

- **election name**: 2021 Western Australian state election
- **country**: Western Australia
- **type**: parliamentary
- **ongoing**: no
- **vote type**: Instant-runoff_voting#Australia, First preference
- **previous election**: 2017 Western Australian state election
- **previous year**: 2017
- **election date**: 13 March 2021
- **next election**: 2025 Western Australian state election
- **next year**: 2025
- **seats for election**: All 59 seats in the Western Australian Legislative Assembly
 and Results of the 2021 Western Australian state election (Legislative Council), all 36 members in the Western Australian Legislative Council
<small>30 Assembly seats are needed for a majority</small>
- **opinion polls**: 2021 Western Australian state election#Opinion polling
- **turnout**: 1,467,159 (85.46%)
- **image size**: 130x130px
- **leader1**: **Mark McGowan**
- **party1**: Australian Labor Party (Western Australian Branch)
- **leaders seat1**: Electoral district of Rockingham, Rockingham
- **last election1**: 41 seats
- **seats before1**: 40
- **seats1**: **53**
- **seat change1**: 13
- **popular vote1**: **846,116**
- **percentage1**: **59.92%**
- **swing1**: 17.70
- **image2**: Mia Davies MLA.png
- **leader2**: Mia Davies
- **party2**: National Party of Australia (WA)
- **leaders seat2**: Electoral district of Central Wheatbelt, Central Wheatbelt
- **last election2**: 5 seats
- **seats before2**: 6
- **seats needed2**: 24
- **seats2**: 4
- **seat change2**: 2
- **popular vote2**: 56,448
- **percentage2**: 4.00%
- **swing2**: 1.40
- **leader3**: Zak Kirkup
- **party3**: Liberal Party of Australia (Western Australian Division)
- **leader since3**: 24 November 2020
- **leaders seat3**: Electoral district of Dawesville, Dawesville
_(lost seat)_
- **last election3**: 13 seats
- **seats before3**: 14
- **seats needed3**: 17
- **seats3**: 2
- **seat change3**: 12
- **popular vote3**: 300,796
- **percentage3**: 21.30%
- **swing3**: 9.90
- **1blank**: Two-party-preferred vote, 2PP
- **1data1**: **69.70%**
- **1data3**: 30.30%
- **2blank**: Two-party-preferred vote, 2PP swing
- **2data1**: 14.10
- **2data3**: 14.10
- **map image**: 2021 Western Australian state election.svg
- **map size**: 400px
- **map caption**: Winning margin by electorate.
- **title**: Premier of Western Australia, Premier
- **before election**: Mark McGowan
- **before party**: Australian Labor Party (Western Australian Branch)
- **after election**: Mark McGowan
- **after party**: Australian Labor Party (Western Australian Branch)
- **elected members**: Members of the Western Australian Legislative Assembly, 2021–2025, elected members
- **outgoing members**: Members of the Western Australian Legislative Assembly, 2017–2021, outgoing members