Electoral district of Secret Harbour
Electoral district of the Western Australian Legislative Assembly
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Secret Harbour is an electoral district of the Western Australian Legislative Assembly.
| Secret Harbour Western Australia—Legislative Assembly | |||||||||||||||
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Interactive map of district boundaries from the 2025 state election | |||||||||||||||
| State | Western Australia | ||||||||||||||
| Created | 2023 | ||||||||||||||
| MP | Luke Herdegen | ||||||||||||||
| Party | One Nation | ||||||||||||||
| Namesake | Secret Harbour, Western Australia | ||||||||||||||
| Electors | 34,284 (2025) | ||||||||||||||
| Area | 77 km2 (29.7 sq mi) | ||||||||||||||
| Demographic | Outer metropolitan | ||||||||||||||
| Coordinates | 32.409°S 115.774°E | ||||||||||||||
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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.[1]
Secret Harbour was first contested at the 2025 state election with a notional margin for the Labor Party of 31.3%.[1] 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.[2] The by-election was won by Luke Herdegen of One Nation, who became their first member in the Western Australian Legislative Assembly.[3]
Members for Secret Harbour
| Member | Party | Term | |
|---|---|---|---|
| Paul Papalia | Labor | 2025–2026 | |
| Luke Herdegen | One Nation | 2026–present | |
Election results
2026 by-election
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| One Nation | Luke Herdegen | 10,234 | 39.07 | +30.63 | |
| Labor | Georgia Tree | 6,386 | 24.38 | −22.17 | |
| Liberal | Ryan Robertson | 4,538 | 17.32 | −7.67 | |
| Greens | Rhi Davies | 1,973 | 7.53 | −1.29 | |
| Legalise Cannabis | Craig Buchanan | 982 | 3.75 | −2.12 | |
| Animal Justice | Neil Jensen | 470 | 1.79 | −0.82 | |
| Christians | Robert Burdett | 437 | 1.67 | −1.06 | |
| Independent | Jayne Palmer | 262 | 1.00 | +1.00 | |
| Libertarian | Matthew Barton | 213 | 0.81 | +0.81 | |
| Western Australia | Anthony Fels | 174 | 0.66 | +0.66 | |
| Shooters, Fishers, Farmers | Tim Hamilton | 122 | 0.47 | +0.47 | |
| Independent | Paul Howard | 110 | 0.42 | +0.42 | |
| Independent | Teresa van Lieshout | 97 | 0.37 | +0.37 | |
| Independent | Brett Murrell | 95 | 0.36 | +0.36 | |
| Independent | Paul Gullan | 54 | 0.21 | +0.21 | |
| Independent | Peter Dunne | 50 | 0.19 | +0.19 | |
| Total formal votes | 26,197 | 96.55 | +1.12 | ||
| Informal votes | 935 | 3.45 | −1.12 | ||
| Turnout | 27,132 | 74.52 | |||
| Two-party-preferred result | |||||
| One Nation | Luke Herdegen | 14,924 | 57.04 | +57.04 | |
| Labor | Georgia Tree | 11,242 | 42.96 | −18.58 | |
| One Nation gain from Labor | |||||
Results are not final. Last updated on 30 August 2026 at 10:15pm AWST.
2025
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Labor | Paul Papalia | 12,876 | 46.5 | −28.5 | |
| Liberal | Mark Jones | 6,913 | 25.0 | +9.7 | |
| Greens | Tamsyn Heynes | 2,439 | 8.8 | +5.3 | |
| One Nation | Liam Hall | 2,332 | 8.4 | +6.3 | |
| Legalise Cannabis | Jim Matters | 1,623 | 5.9 | +5.5 | |
| Christians | Robert Burdett | 755 | 2.7 | +2.7 | |
| Animal Justice | Elizabeth Storer | 723 | 2.6 | +2.6 | |
| Total formal votes | 27,661 | 95.4 | −0.6 | ||
| Informal votes | 1,323 | 4.6 | +0.6 | ||
| Turnout | 28,984 | 84.5 | +4.0 | ||
| Two-party-preferred result | |||||
| Labor | Paul Papalia | 17,011 | 61.5 | −19.8 | |
| Liberal | Mark Jones | 10,630 | 38.5 | +19.8 | |
| Labor hold | Swing | −19.8 | |||