Mark Dreyfus (Australian Labor Party) won Isaacs after preferences by 31,027 votes over Fiona Ottey (Liberal).
After preferences, Mark Dreyfus received 69,604 votes (64.34%). Fiona Ottey received 38,577 votes (35.66%).
Ranked here by first-preference votes. The elected member is determined by the full preferential count, not necessarily the primary-vote order.
| Primary rank | Candidate | Party | Ballot | First preferences | Primary share | Final TCP |
|---|---|---|---|---|---|---|
| 1 | Mark DreyfusElectedAEC historical incumbent marker | Australian Labor Party | 1 | 53,454 | 49.41% | 69,604 · 64.34% · +4.83 pp swing |
| 2 | Fiona Ottey | Liberal | 4 | 30,660 | 28.34% | 38,577 · 35.66% · -4.83 pp swing |
| 3 | Matthew Kirwan | The Greens | 2 | 15,200 | 14.05% | Not a TCP finalist |
| 4 | Geoff Mcmahon | Pauline Hanson's One Nation | 5 | 4,989 | 4.61% | Not a TCP finalist |
| 5 | Audrey Harmse | Family First | 3 | 3,878 | 3.58% | Not a TCP finalist |
These are official final results for the 3 May 2025 federal election. They are historical election records, not a claim about the current House membership or future candidacies.
Candidate biographies, policy positions, political finance, current tenure, and future candidacy remain separate sourced layers.
members: 2bb8da54d136fcb93b2b775d59f0d234998583966e00d35645f4df8e4d38b32ccandidates: b4ff38969ed49fc09c89a5c84a7d5b6a4046ad53b5f4e3492e0e4e73beba17a9tcp: 870d7d326df7f59cf3c0638045eb0a42722f39b2b40b1b7e475d31a15bd221b7turnout: 37ae6598a2b4a54f6a8ad83ee787a1842d73ce82b9a405db3d00d765c34c1526informal: 52d6201910a2401fbbf3ecb3f87c089aaff268b19ed9f5b463489fcf322078de