Secret Harbour is an electoral district of the Western Australian Legislative Assembly.

Secret Harbour is located in outer-metropolitan Perth, covering the vast majority of the former seat of Warnbro, which was renamed to Secret Harbour at the 2023 redistribution. Differing from its predecessor, Secret Harbour crosses the boundary of metropolitan Perth by taking in parts of Mandurah.

Secret Harbour was first contested at the 2025 state election with a notional margin for the Labor Party of 31.3%. Paul Papalia, the MP for the outgoing electorate of Warnbro was elected as Secret Harbour's inaugural member following the election.

On 6 July 2026, Papalia announced his resignation, citing a family member's medical issues, triggering a by-election, which was held on 29 August 2026. The by-election was won by Luke Herdegen of One Nation, who became their first member in the Western Australian Legislative Assembly.

Members for Secret Harbour MemberPartyTerm  Paul Papalia Labor 2025–2026  Luke Herdegen One Nation 2026–present

Election results 2026 by-election

2025

References