title: Electoral results for the Division of Isaacs
text: # Electoral results for the Division of Isaacs
  
  This is a list of electoral results for the Division of Isaacs in Australian federal elections from the division's creation in 1969 until the present.
  
  ## Members
  
  | Member | Party | Term |
  | - | - | - |
  | David Hamer | Liberal | 1969–1974 |
  | Gareth Clayton | Labor | 1974–1975 |
  | David Hamer | Liberal | 1975–1977 |
  | Bill Burns | Liberal | 1977–1980 |
  | David Charles | Labor | 1980–1990 |
  | Rod Atkinson | Liberal | 1990–1996 |
  | Greg Wilton | Labor | 1996–2000 |
  | Ann Corcoran | Labor | 2000 by–2007 |
  | Mark Dreyfus | Labor | 2007–present |
  
  ## Election results
  
  ### Elections in the 2020s
  
  **2022**
  
  2022 Australian federal election: Isaacs :
  
  | Party | Party | Candidate | Votes | % | ±% |
  | - | - | - | - | - | - |
  | | Labor | Mark Dreyfus | 39,228 | 39.95 | −4.95 |
  | | Liberal | Robbie Beaton | 31,306 | 31.89 | −3.36 |
  | | Greens | Alex Breskin | 12,621 | 12.85 | +1.78 |
  | | United Australia | Scott McCamish | 4,855 | 4.94 | +0.95 |
  | | Liberal Democrats | Sarah O'Donnell | 4,785 | 4.87 | +4.87 |
  | | One Nation | Boris Sokiransky | 3,130 | 3.19 | +3.19 |
  | | Animal Justice | Alix Livingstone | 2,259 | 2.30 | −1.30 |
  | Total formal votes | Total formal votes | Total formal votes | 98,184 | 96.67 | +0.80 |
  | Informal votes | Informal votes | Informal votes | 3,382 | 3.33 | −0.80 |
  | Turnout | Turnout | Turnout | 101,566 | 91.77 | −1.73 |
  | Two-party-preferred result ||||||
  | | Labor | Mark Dreyfus | 55,818 | 56.85 | +0.39 |
  | | Liberal | Robbie Beaton | 42,366 | 43.15 | −0.39 |
  | | Labor hold | Labor hold | Swing | +0.39 | |
  
  ### Elections in the 2010s
  
  **2019**
  
  2019 Australian federal election: Isaacs :
  
  | Party | Party | Candidate | Votes | % | ±% |
  | - | - | - | - | - | - |
  | | Labor | Mark Dreyfus | 43,364 | 44.78 | +3.84 |
  | | Liberal | Jeremy Hearn | 34,089 | 35.20 | −7.45 |
  | | Greens | Kim Samiotis | 10,822 | 11.18 | +0.46 |
  | | United Australia | Tony Seals | 3,813 | 3.94 | +3.94 |
  | | Animal Justice | Bronwyn Currie | 3,607 | 3.72 | −0.62 |
  | | Rise Up Australia | Ash Puvimanasinghe | 1,142 | 1.18 | +0.53 |
  | Total formal votes | Total formal votes | Total formal votes | 96,837 | 95.86 | −0.73 |
  | Informal votes | Informal votes | Informal votes | 4,180 | 4.14 | +0.73 |
  | Turnout | Turnout | Turnout | 101,017 | 93.28 | +1.03 |
  | Two-party-preferred result ||||||
  | | Labor | Mark Dreyfus | 54,645 | 56.43 | +3.45 |
  | | Liberal | Jeremy Hearn | 42,192 | 43.57 | −3.45 |
  | | Labor hold | Labor hold | Swing | +3.45 | |
  
  **2016**
  
  2016 Australian federal election: Isaacs :
  
  | Party | Party | Candidate | Votes | % | ±% |
  | - | - | - | - | - | - |
  | | Labor | Mark Dreyfus | 41,144 | 44.49 | +3.16 |
  | | Liberal | Garry Spencer | 37,312 | 40.35 | +0.14 |
  | | Greens | Alex Breskin | 9,429 | 10.20 | +3.14 |
  | | Animal Justice | Elizabeth Johnston | 4,585 | 4.96 | +4.96 |
  | Total formal votes | Total formal votes | Total formal votes | 92,470 | 96.31 | +1.11 |
  | Informal votes | Informal votes | Informal votes | 3,539 | 3.69 | −1.11 |
  | Turnout | Turnout | Turnout | 96,009 | 90.78 | −2.26 |
  | Two-party-preferred result ||||||
  | | Labor | Mark Dreyfus | 51,538 | 55.73 | +1.87 |
  | | Liberal | Garry Spencer | 40,932 | 44.27 | −1.87 |
  | | Labor hold | Labor hold | Swing | +1.87 | |
  
  **2013**
  
  2013 Australian federal election: Isaacs :
  
  | Party | Party | Candidate | Votes | % | ±% |
  | - | - | - | - | - | - |
  | | Labor | Mark Dreyfus | 35,837 | 41.33 | −7.55 |
  | | Liberal | Garry Spencer | 34,864 | 40.21 | +5.12 |
  | | Greens | Sandra Miles | 6,120 | 7.06 | −3.84 |
  | | Palmer United | Avtar Gill | 2,846 | 3.28 | +3.28 |
  | | Family First | John Elliott | 2,503 | 2.89 | −0.76 |
  | | Sex Party | Laith Graham | 2,093 | 2.41 | +2.41 |
  | | Democratic Labour | James Leach | 1,144 | 1.32 | +1.32 |
  | | Christians | Karen Dobby | 743 | 0.86 | +0.86 |
  | | Rise Up Australia | Nadia Seaman | 558 | 0.64 | +0.64 |
  | Total formal votes | Total formal votes | Total formal votes | 86,708 | 95.20 | −0.09 |
  | Informal votes | Informal votes | Informal votes | 4,375 | 4.80 | +0.09 |
  | Turnout | Turnout | Turnout | 91,083 | 93.01 | +0.09 |
  | Two-party-preferred result ||||||
  | | Labor | Mark Dreyfus | 46,704 | 53.86 | −6.55 |
  | | Liberal | Garry Spencer | 40,004 | 46.14 | +6.55 |
  | | Labor hold | Labor hold | Swing | −6.55 | |
  
  **2010**
  
  2010 Australian federal election: Isaacs :
  
  | Party | Party | Candidate | Votes | % | ±% |
  | - | - | - | - | - | - |
  | | Labor | Mark Dreyfus | 45,131 | 49.42 | +0.67 |
  | | Liberal | Dale McClelland | 31,472 | 34.47 | −4.00 |
  | | Greens | Chris Carman | 9,980 | 10.93 | +4.69 |
  | | Family First | Heather Wheatley | 3,377 | 3.70 | +1.15 |
  | | Independent | Gordon Ford | 1,355 | 1.48 | +0.22 |
  | Total formal votes | Total formal votes | Total formal votes | 91,315 | 95.29 | −1.40 |
  | Informal votes | Informal votes | Informal votes | 4,516 | 4.71 | +1.40 |
  | Turnout | Turnout | Turnout | 95,831 | 93.23 | −1.95 |
  | Two-party-preferred result ||||||
  | | Labor | Mark Dreyfus | 55,721 | 61.02 | +3.33 |
  | | Liberal | Dale McClelland | 35,594 | 38.98 | −3.33 |
  | | Labor hold | Labor hold | Swing | +3.33 | |
  
  ### Elections in the 2000s
  
  **2007**
  
  2007 Australian federal election: Isaacs :
  
  | Party | Party | Candidate | Votes | % | ±% |
  | - | - | - | - | - | - |
  | | Labor | Mark Dreyfus | 44,056 | 48.76 | +4.45 |
  | | Liberal | Ross Fox | 34,762 | 38.47 | −4.82 |
  | | Greens | Colin Long | 5,636 | 6.24 | −1.07 |
  | | Family First | Jadah Pleiter | 2,308 | 2.55 | +0.15 |
  | | Democrats | Laura Chipp | 1,970 | 2.18 | +1.15 |
  | | Independent | Gordon Ford | 1,137 | 1.26 | +0.49 |
  | | Liberty & Democracy | Robert Norrie | 492 | 0.54 | +0.54 |
  | Total formal votes | Total formal votes | Total formal votes | 90,361 | 96.69 | +1.73 |
  | Informal votes | Informal votes | Informal votes | 3,092 | 3.31 | −1.73 |
  | Turnout | Turnout | Turnout | 93,453 | 95.18 | −0.07 |
  | Two-party-preferred result ||||||
  | | Labor | Mark Dreyfus | 52,131 | 57.69 | +6.21 |
  | | Liberal | Ross Fox | 38,230 | 42.31 | −6.21 |
  | | Labor hold | Labor hold | Swing | +6.21 | |
  
  **2004**
  
  2004 Australian federal election: Isaacs :
  
  | Party | Party | Candidate | Votes | % | ±% |
  | - | - | - | - | - | - |
  | | Labor | Ann Corcoran | 37,245 | 44.31 | −2.93 |
  | | Liberal | Jeff Shelley | 36,391 | 43.29 | +5.23 |
  | | Greens | Sean Hardy | 6,143 | 7.31 | +3.35 |
  | | Family First | Jacob Mathews | 2,019 | 2.40 | +2.40 |
  | | Democrats | Haydn Fletcher | 862 | 1.03 | −6.05 |
  | | Independent | Gordon Ford | 650 | 0.77 | +0.77 |
  | | One Nation | Carl Groves | 536 | 0.64 | −0.55 |
  | | Citizens Electoral Council | Martha Malliotis | 214 | 0.25 | +0.04 |
  | Total formal votes | Total formal votes | Total formal votes | 84,060 | 94.96 | −0.37 |
  | Informal votes | Informal votes | Informal votes | 4,464 | 5.04 | +0.37 |
  | Turnout | Turnout | Turnout | 88,524 | 95.25 | +0.11 |
  | Two-party-preferred result ||||||
  | | Labor | Ann Corcoran | 43,277 | 51.48 | −5.14 |
  | | Liberal | Jeff Shelley | 40,783 | 48.52 | +5.14 |
  | | Labor hold | Labor hold | Swing | −5.14 | |
  
  **2001**
  
  2001 Australian federal election: Isaacs :
  
  | Party | Party | Candidate | Votes | % | ±% |
  | - | - | - | - | - | - |
  | | Labor | Ann Corcoran | 31,951 | 42.18 | −6.25 |
  | | Liberal | Michael Shepherdson | 31,520 | 41.61 | +3.44 |
  | | Democrats | Haydn Fletcher | 5,627 | 7.43 | +1.50 |
  | | Greens | Darren Bujeya | 3,073 | 4.06 | +1.92 |
  | | One Nation | John Groves | 1,358 | 1.79 | −2.25 |
  | | Independent | Shirly Oakley | 1,342 | 1.77 | +1.77 |
  | | Independent | Patricia Brook | 640 | 0.84 | +0.84 |
  | | Citizens Electoral Council | Heather Stanton | 246 | 0.32 | +0.32 |
  | Total formal votes | Total formal votes | Total formal votes | 75,757 | 95.35 | −1.03 |
  | Informal votes | Informal votes | Informal votes | 3,691 | 4.65 | +1.03 |
  | Turnout | Turnout | Turnout | 79,448 | 97.11 | |
  | Two-party-preferred result ||||||
  | | Labor | Ann Corcoran | 40,011 | 52.81 | −3.59 |
  | | Liberal | Michael Shepherdson | 35,746 | 47.19 | +3.59 |
  | | Labor hold | Labor hold | Swing | −3.59 | |
  
  **2000 by-election**
  
  Isaacs by-election, 2000 :
  
  | Party | Party | Candidate | Votes | % | ±% |
  | - | - | - | - | - | - |
  | | Labor | Ann Corcoran | 34,483 | 56.54 | +8.11 |
  | | Democrats | Haydn Fletcher | 10,540 | 17.28 | +11.36 |
  | | Greens | Mary Hutchison | 5,539 | 9.08 | +6.94 |
  | | Independent | Carl Wesley | 5,329 | 8.74 | +8.74 |
  | | Australia First | Patricia Brook | 3,270 | 5.36 | +4.92 |
  | | Democratic Labor | Gail King | 1,832 | 3.00 | +3.00 |
  | Total formal votes | Total formal votes | Total formal votes | 60,993 | 91.84 | −4.55 |
  | Informal votes | Informal votes | Informal votes | 5,420 | 8.16 | +4.55 |
  | Turnout | Turnout | Turnout | 66,413 | 81.65 | −14.56 |
  | Two-candidate-preferred result ||||||
  | | Labor | Ann Corcoran | 40,280 | 66.04 | +9.64 |
  | | Democrats | Haydn Fletcher | 20,713 | 33.96 | +33.96 |
  | | Labor hold | Labor hold | Swing | N/A | |
  
  ### Elections in the 1990s
  
  **1998**
  
  1998 Australian federal election: Isaacs :
  
  | Party | Party | Candidate | Votes | % | ±% |
  | - | - | - | - | - | - |
  | | Labor | Greg Wilton | 35,604 | 48.43 | +4.38 |
  | | Liberal | Mike Rawlinson | 28,060 | 38.17 | −3.89 |
  | | Democrats | Robert Ryan | 4,355 | 5.92 | −3.65 |
  | | One Nation | Denis Reed-Smith | 2,971 | 4.04 | +4.04 |
  | | Greens | Daniel Tirawa | 1,570 | 2.14 | +2.14 |
  | | Unity | Mija Carkeek | 421 | 0.57 | +0.57 |
  | | Australia First | Patricia Brook | 325 | 0.44 | +0.44 |
  | | Natural Law | Amanda McIntosh | 211 | 0.29 | −0.56 |
  | Total formal votes | Total formal votes | Total formal votes | 73,517 | 96.39 | −0.82 |
  | Informal votes | Informal votes | Informal votes | 2,754 | 3.61 | +0.82 |
  | Turnout | Turnout | Turnout | 76,271 | 96.21 | +0.00 |
  | Two-party-preferred result ||||||
  | | Labor | Greg Wilton | 41,467 | 56.40 | +4.84 |
  | | Liberal | Mike Rawlinson | 32,050 | 43.60 | −4.84 |
  | | Labor hold | Labor hold | Swing | +4.84 | |
  
  **1996**
  
  1996 Australian federal election: Isaacs :
  
  | Party | Party | Candidate | Votes | % | ±% |
  | - | - | - | - | - | - |
  | | Labor | Greg Wilton | 30,997 | 44.05 | −4.91 |
  | | Liberal | Rod Atkinson | 29,595 | 42.06 | −1.38 |
  | | Democrats | Kaylyn Raynor | 6,734 | 9.57 | +5.12 |
  | | Against Further Immigration | Angela Walker | 2,448 | 3.48 | +3.48 |
  | | Natural Law | Jan Allison | 597 | 0.85 | −1.42 |
  | Total formal votes | Total formal votes | Total formal votes | 70,371 | 97.20 | −0.19 |
  | Informal votes | Informal votes | Informal votes | 2,024 | 2.80 | +0.19 |
  | Turnout | Turnout | Turnout | 72,395 | 96.21 | −0.21 |
  | Two-party-preferred result ||||||
  | | Labor | Greg Wilton | 36,158 | 51.56 | −2.35 |
  | | Liberal | Rod Atkinson | 33,965 | 48.44 | +2.35 |
  | | Labor notional hold | Labor notional hold | Swing | −2.35 | |
  
  **1993**
  
  1993 Australian federal election: Isaacs :
  
  | Party | Party | Candidate | Votes | % | ±% |
  | - | - | - | - | - | - |
  | | Liberal | Rod Atkinson | 35,792 | 50.55 | +0.07 |
  | | Labor | John McSwiney | 30,007 | 42.38 | +8.48 |
  | | Democrats | Kaylyn Raynor | 3,546 | 5.01 | −10.60 |
  | | Natural Law | Judee Horin | 1,458 | 2.06 | +2.06 |
  | Total formal votes | Total formal votes | Total formal votes | 70,803 | 97.57 | +0.60 |
  | Informal votes | Informal votes | Informal votes | 1,761 | 2.43 | −0.60 |
  | Turnout | Turnout | Turnout | 72,564 | 96.42 | |
  | Two-party-preferred result ||||||
  | | Liberal | Rod Atkinson | 37,490 | 52.98 | −2.74 |
  | | Labor | John McSwiney | 33,266 | 47.02 | +2.74 |
  | | Liberal hold | Liberal hold | Swing | −2.74 | |
  
  **1990**
  
  1990 Australian federal election: Isaacs :
  
  | Party | Party | Candidate | Votes | % | ±% |
  | - | - | - | - | - | - |
  | | Liberal | Rod Atkinson | 35,160 | 50.5 | +4.5 |
  | | Labor | Jim Ensor | 23,613 | 33.9 | −10.9 |
  | | Democrats | Darren Koch | 10,874 | 15.6 | +8.4 |
  | Total formal votes | Total formal votes | Total formal votes | 69,647 | 97.0 | |
  | Informal votes | Informal votes | Informal votes | 2,173 | 3.0 | |
  | Turnout | Turnout | Turnout | 71,820 | 95.9 | |
  | Two-party-preferred result ||||||
  | | Liberal | Rod Atkinson | 38,775 | 55.7 | +5.5 |
  | | Labor | Jim Ensor | 30,806 | 44.3 | −5.5 |
  | | Liberal notional hold | Liberal notional hold | Swing | +5.5 | |
  
  ### Elections in the 1980s
  
  **1987**
  
  1987 Australian federal election: Isaacs :
  
  | Party | Party | Candidate | Votes | % | ±% |
  | - | - | - | - | - | - |
  | | Labor | David Charles | 29,325 | 47.7 | −3.2 |
  | | Liberal | Rod Atkinson | 26,448 | 43.1 | +3.0 |
  | | Democrats | Maxine Aspinall | 4,428 | 7.2 | +1.1 |
  | | National | Bill Buchanan | 833 | 1.4 | +0.1 |
  | | Independent | Linda Ely | 395 | 0.6 | +0.6 |
  | Total formal votes | Total formal votes | Total formal votes | 61,429 | 95.5 | |
  | Informal votes | Informal votes | Informal votes | 2,891 | 4.5 | |
  | Turnout | Turnout | Turnout | 64,320 | 95.2 | |
  | Two-party-preferred result ||||||
  | | Labor | David Charles | 32,351 | 52.7 | −1.7 |
  | | Liberal | Rod Atkinson | 29,057 | 47.3 | +1.7 |
  | | Labor hold | Labor hold | Swing | −1.7 | |
  
  **1984**
  
  1984 Australian federal election: Isaacs :
  
  | Party | Party | Candidate | Votes | % | ±% |
  | - | - | - | - | - | - |
  | | Labor | David Charles | 30,612 | 50.9 | −2.0 |
  | | Liberal | Peter Zablud | 24,079 | 40.1 | −0.4 |
  | | Democrats | Peter Lindemann | 3,693 | 6.1 | −0.6 |
  | | Democratic Labor | Dudley de Rozario | 933 | 1.6 | +1.6 |
  | | National | Charles Lacey | 774 | 1.3 | +1.3 |
  | Total formal votes | Total formal votes | Total formal votes | 60,091 | 92.5 | |
  | Informal votes | Informal votes | Informal votes | 4,894 | 7.5 | |
  | Turnout | Turnout | Turnout | 64,985 | 95.3 | |
  | Two-party-preferred result ||||||
  | | Labor | David Charles | 32,681 | 54.4 | −2.5 |
  | | Liberal | Peter Zablud | 27,407 | 45.6 | +2.5 |
  | | Labor hold | Labor hold | Swing | −2.5 | |
  
  **1983**
  
  1983 Australian federal election: Isaacs :
  
  | Party | Party | Candidate | Votes | % | ±% |
  | - | - | - | - | - | - |
  | | Labor | David Charles | 38,630 | 55.0 | +9.9 |
  | | Liberal | Ann Dunkley | 26,964 | 38.4 | +0.4 |
  | | Democrats | Terence Gough | 4,689 | 6.7 | −7.4 |
  | Total formal votes | Total formal votes | Total formal votes | 70,283 | 98.4 | |
  | Informal votes | Informal votes | Informal votes | 1,169 | 1.6 | |
  | Turnout | Turnout | Turnout | 71,452 | 96.1 | |
  | Two-party-preferred result ||||||
  | | Labor | David Charles | | 59.0 | +7.2 |
  | | Liberal | Ann Dunkley | | 41.0 | −7.2 |
  | | Labor hold | Labor hold | Swing | +7.2 | |
  
  **1980**
  
  1980 Australian federal election: Isaacs :
  
  | Party | Party | Candidate | Votes | % | ±% |
  | - | - | - | - | - | - |
  | | Labor | David Charles | 31,192 | 45.1 | +10.5 |
  | | Liberal | Bill Burns | 26,293 | 38.0 | −6.4 |
  | | Democrats | Michael Bakos | 9,777 | 14.1 | −2.9 |
  | | Independent | Sydney Balhorn | 1,955 | 2.8 | +2.8 |
  | Total formal votes | Total formal votes | Total formal votes | 69,217 | 97.8 | |
  | Informal votes | Informal votes | Informal votes | 1,534 | 2.2 | |
  | Turnout | Turnout | Turnout | 70,751 | 95.4 | |
  | Two-party-preferred result ||||||
  | | Labor | David Charles | 35,856 | 51.8 | +9.1 |
  | | Liberal | Bill Burns | 33,361 | 48.2 | −9.1 |
  | | Labor gain from Liberal | Labor gain from Liberal | Swing | +9.1 | |
  
  ### Elections in the 1970s
  
  **1977**
  
  1977 Australian federal election: Isaacs :
  
  | Party | Party | Candidate | Votes | % | ±% |
  | - | - | - | - | - | - |
  | | Liberal | Bill Burns | 29,857 | 44.4 | −6.8 |
  | | Labor | Kenneth Williams | 23,275 | 34.6 | −8.2 |
  | | Democrats | Francis McLeod | 11,427 | 17.0 | +17.0 |
  | | Democratic Labor | Ralph Cleary | 2,741 | 4.1 | +0.8 |
  | Total formal votes | Total formal votes | Total formal votes | 67,300 | 97.7 | |
  | Informal votes | Informal votes | Informal votes | 1,550 | 2.3 | |
  | Turnout | Turnout | Turnout | 68,850 | 95.9 | |
  | Two-party-preferred result ||||||
  | | Liberal | Bill Burns | 38,595 | 57.3 | +2.4 |
  | | Labor | Kenneth Williams | 28,705 | 42.7 | −2.4 |
  | | Liberal hold | Liberal hold | Swing | +2.4 | |
  
  **1975**
  
  1975 Australian federal election: Isaacs :
  
  | Party | Party | Candidate | Votes | % | ±% |
  | - | - | - | - | - | - |
  | | Liberal | David Hamer | 30,646 | 53.2 | +8.8 |
  | | Labor | Gareth Clayton | 23,506 | 40.8 | −5.3 |
  | | Democratic Labor | Ralph Cleary | 1,917 | 3.3 | −0.5 |
  | | Australia | Eldon Simmons | 805 | 1.4 | −1.1 |
  | | Independent | Marc Aussie-Stone | 719 | 1.2 | +1.2 |
  | Total formal votes | Total formal votes | Total formal votes | 57,593 | 98.3 | |
  | Informal votes | Informal votes | Informal votes | 975 | 1.7 | |
  | Turnout | Turnout | Turnout | 58,568 | 95.7 | |
  | Two-party-preferred result ||||||
  | | Liberal | David Hamer | | 56.9 | +7.5 |
  | | Labor | Gareth Clayton | | 43.1 | −7.5 |
  | | Liberal gain from Labor | Liberal gain from Labor | Swing | +7.5 | |
  
  **1974**
  
  1974 Australian federal election: Isaacs :
  
  | Party | Party | Candidate | Votes | % | ±% |
  | - | - | - | - | - | - |
  | | Labor | Gareth Clayton | 26,225 | 46.1 | +0.3 |
  | | Liberal | David Hamer | 25,267 | 44.4 | +2.0 |
  | | Democratic Labor | William Leech | 2,179 | 3.8 | −3.2 |
  | | Australia | Elizabeth Chesterfield | 1,443 | 2.5 | −2.3 |
  | | Independent | James Bernard | 1,181 | 2.1 | +2.1 |
  | | Independent | Janus Fawke | 597 | 1.0 | +1.0 |
  | Total formal votes | Total formal votes | Total formal votes | 56,892 | 98.2 | |
  | Informal votes | Informal votes | Informal votes | 1,062 | 1.8 | |
  | Turnout | Turnout | Turnout | 57,954 | 95.6 | |
  | Two-party-preferred result ||||||
  | | Labor | Gareth Clayton | | 50.6 | +1.7 |
  | | Liberal | David Hamer | | 49.4 | −1.7 |
  | | Labor gain from Liberal | Labor gain from Liberal | Swing | +1.7 | |
  
  **1972**
  
  1972 Australian federal election: Isaacs :
  
  | Party | Party | Candidate | Votes | % | ±% |
  | - | - | - | - | - | - |
  | | Labor | Gareth Clayton | 23,904 | 45.8 | +5.7 |
  | | Liberal | David Hamer | 22,110 | 42.4 | −5.3 |
  | | Democratic Labor | Frederick Skinner | 3,635 | 7.0 | −3.1 |
  | | Australia | Peter Harrie | 2,499 | 4.8 | +4.8 |
  | Total formal votes | Total formal votes | Total formal votes | 52,148 | 98.7 | |
  | Informal votes | Informal votes | Informal votes | 685 | 1.3 | |
  | Turnout | Turnout | Turnout | 52,833 | 95.6 | |
  | Two-party-preferred result ||||||
  | | Liberal | David Hamer | 26,664 | 51.1 | −6.9 |
  | | Labor | Gareth Clayton | 25,484 | 48.9 | +6.9 |
  | | Liberal hold | Liberal hold | Swing | −6.9 | |
  
  ### Elections in the 1960s
  
  **1969**
  
  1969 Australian federal election: Isaacs :
  
  | Party | Party | Candidate | Votes | % | ±% |
  | - | - | - | - | - | - |
  | | Liberal | David Hamer | 23,525 | 47.7 | −1.4 |
  | | Labor | Alan Roberts | 19,751 | 40.1 | +4.2 |
  | | Democratic Labor | Frederick Skinner | 4,967 | 10.1 | −0.4 |
  | | Independent | Liane Wessley | 1,026 | 2.1 | +2.1 |
  | Total formal votes | Total formal votes | Total formal votes | 49,269 | 97.8 | |
  | Informal votes | Informal votes | Informal votes | 1,129 | 2.2 | |
  | Turnout | Turnout | Turnout | 50,398 | 95.3 | |
  | Two-party-preferred result ||||||
  | | Liberal | David Hamer | 28,562 | 58.0 | −3.2 |
  | | Labor | Alan Roberts | 20,707 | 42.0 | +3.2 |
  | | Liberal notional hold | Liberal notional hold | Swing | −3.2 | |
  