Divisions · Victoria · 120,753 enrolled
Isaacs
Mark Dreyfus (Labor) won Isaacs in 2025 with 64.34% of the final two-candidate vote against Fiona Ottey (Liberal), a safe margin of 14.34 points.
Member now Mark Dreyfus Labor · in Parliament since 24 November 2007
- Turnout
- 92.87%
- Informal
- 3.53%
- Labor TPP
- 64.34%
- TPP swing to Labor
- +4.83
- Formal votes
- 108,181
- 2022 winner
- Mark Dreyfus (Labor)
2025 · first preferences
5 candidates
- Mark DreyfusLabor · sitting member · elected 53,454 49.41% +6.63
- Fiona OtteyLiberal 30,660 28.34% −1.20
- Matthew KirwanGreens 15,200 14.05% +1.98
- Geoff McMahonOne Nation 4,989 4.61% +1.59
- Audrey HarmseFamily First 3,878 3.58% +3.58
Votes, share of formal votes and swing on 2022 (AEC, notional for redrawn boundaries).
After preferences
The final two
Mark Dreyfus · Labor 64.34% 69,604
Fiona Ottey · Liberal 35.66% 38,577
Lead: 31,027 of 108,181 votes.
Distribution of preferences · 4 counts
| Candidate | First | Count 2 | Count 3 | Count 4 |
|---|---|---|---|---|
| Mark Dreyfus · Labor | 53,454 | 54,126 | 55,100 | 69,604 |
| Matthew Kirwan · Greens | 15,200 | 16,069 | 17,118 | excl. |
| Audrey Harmse · Family First | 3,878 | excl. | ||
| Fiona Ottey · Liberal | 30,660 | 31,552 | 35,963 | 38,577 |
| Geoff McMahon · One Nation | 4,989 | 6,434 | excl. |
Each count excludes the candidate with the fewest votes and passes their papers on. Step through it on /au/seats.
Photos: Mark Dreyfus — UK Home Office, CC BY 2.0 . Via Wikimedia Commons.