# Electoral results for the district of Rockingham

This is a list of electoral results for the electoral district of Rockingham in Western Australian state elections.

## Members for Rockingham

| Member | Party | Term |
| Mike Barnett | Labor | 1974–1996 |
| Mark McGowan | Labor | 1996–2023 |
| Magenta Marshall | Labor | 2023–present |

## Election results
### Elections in the 2020s

2023 Rockingham state by-election :
| Party | Party | Candidate | Votes | % | ±% |
| | Labor | Magenta Marshall | 10,791 | 49.33 | −33.42 |
| | Liberal | Peter Hudson | 3,868 | 17.73 | +7.91 |
| | Independent | Hayley Edwards | 3,488 | 15.95 | +15.95 |
| | Legalise Cannabis | Rae Cottam | 1,487 | 6.80 | +6.80 |
| | Greens | Madeleine De Jong | 1,081 | 4.94 | +1.77 |
| | Christians | Mike Crichton | 534 | 2.44 | +2.44 |
| | Western Australia | Janetia Knapp | 262 | 1.20 | +1.20 |
| | Independent | Clive Gallety | 193 | 0.88 | +0.88 |
| | Independent | Peter Dunne | 170 | 0.78 | +0.78 |
| Total formal votes | Total formal votes | Total formal votes | 21,874 | 97.20 | +0.46 |
| Informal votes | Informal votes | Informal votes | 630 | 2.80 | −0.46 |
| Turnout | Turnout | Turnout | 22,504 | 74.48 | −9.46 |
| Notional two-party-preferred count ||||||
| | Labor | Magenta Marshall | 13,978 | 65.20 | −22.52 |
| | Liberal | Peter Hudson | 7,461 | 34.80 | +22.52 |
| Two-candidate-preferred result ||||||
| | Labor | Magenta Marshall | 13,412 | 61.37 | −26.35 |
| | Independent | Hayley Edwards | 8,443 | 38.63 | +38.63 |
| | Labor hold | Labor hold | Swing | N/A | |
2021 Western Australian state election: Rockingham :
| Party | Party | Candidate | Votes | % | ±% |
| | Labor | Mark McGowan | 19,661 | 82.8 | +21.3 |
| | Liberal | Michael McClure | 2,322 | 9.8 | −7.9 |
| | Greens | Breanna Morgan | 753 | 3.2 | −4.0 |
| | One Nation | Geoff George | 489 | 2.1 | −6.6 |
| | No Mandatory Vaccination | Tom Hawkins | 383 | 1.6 | +1.6 |
| | Liberal Democrats | William Lofts | 151 | 0.6 | +0.6 |
| Total formal votes | Total formal votes | Total formal votes | 23,759 | 96.7 | +1.1 |
| Informal votes | Informal votes | Informal votes | 801 | 3.3 | −1.1 |
| Turnout | Turnout | Turnout | 24,560 | 83.9 | −1.2 |
| Two-party-preferred result ||||||
| | Labor | Mark McGowan | 20,836 | 87.7 | +14.2 |
| | Liberal | Michael McClure | 2,916 | 12.3 | −14.2 |
| | Labor hold | Labor hold | Swing | +14.2 | |

### Elections in the 2010s

2017 Western Australian state election: Rockingham :
| Party | Party | Candidate | Votes | % | ±% |
| | Labor | Mark McGowan | 13,576 | 61.6 | +5.2 |
| | Liberal | Wendy Baumann | 3,965 | 18.0 | −14.5 |
| | One Nation | James Omalley | 1,915 | 8.7 | +8.7 |
| | Greens | James Mumme | 1,605 | 7.3 | +1.2 |
| | Independent | Craig Buchanan | 433 | 2.0 | +2.0 |
| | Christians | Sylvia Stonehouse | 413 | 1.9 | −0.2 |
| | Micro Business | Mark Charles | 147 | 0.7 | +0.7 |
| Total formal votes | Total formal votes | Total formal votes | 22,054 | 95.7 | +1.7 |
| Informal votes | Informal votes | Informal votes | 998 | 4.3 | −1.7 |
| Turnout | Turnout | Turnout | 23,052 | 85.6 | −1.5 |
| Two-party-preferred result ||||||
| | Labor | Mark McGowan | 16,174 | 73.4 | +10.2 |
| | Liberal | Wendy Baumann | 5,869 | 26.6 | −10.2 |
| | Labor hold | Labor hold | Swing | +10.2 | |
2013 Western Australian state election: Rockingham :
| Party | Party | Candidate | Votes | % | ±% |
| | Labor | Mark McGowan | 11,716 | 56.4 | +5.4 |
| | Liberal | Matthew Pollock | 6,743 | 32.5 | –0.4 |
| | Greens | Dawn Jecks | 1,265 | 6.1 | –6.8 |
| | Independent | Matthew Whitfield | 610 | 2.9 | +2.9 |
| | Christians | John Wieske | 440 | 2.1 | +2.1 |
| Total formal votes | Total formal votes | Total formal votes | 20,773 | 93.9 | −0.4 |
| Informal votes | Informal votes | Informal votes | 1,341 | 6.1 | +0.4 |
| Turnout | Turnout | Turnout | 22,114 | 88.0 | |
| Two-party-preferred result ||||||
| | Labor | Mark McGowan | 13,127 | 63.2 | +1.8 |
| | Liberal | Matthew Pollock | 7,642 | 36.8 | –1.8 |
| | Labor hold | Labor hold | Swing | +1.8 | |

### Elections in the 2000s

2008 Western Australian state election: Rockingham :
| Party | Party | Candidate | Votes | % | ±% |
| | Labor | Mark McGowan | 9,559 | 51.2 | -4.1 |
| | Liberal | David Simpson | 6,371 | 34.1 | +1.3 |
| | Greens | James Mumme | 2,432 | 13.0 | +8.3 |
| | Citizens Electoral Council | Rob Totten | 318 | 1.7 | +1.3 |
| Total formal votes | Total formal votes | Total formal votes | 18,680 | 94.5 | −0.1 |
| Informal votes | Informal votes | Informal votes | 1,097 | 5.5 | +0.1 |
| Turnout | Turnout | Turnout | 19,777 | 86.4 | |
| Two-party-preferred result ||||||
| | Labor | Mark McGowan | 11,321 | 60.6 | -0.7 |
| | Liberal | David Simpson | 7,355 | 39.4 | +0.7 |
| | Labor hold | Labor hold | Swing | -0.7 | |
2005 Western Australian state election: Rockingham :
| Party | Party | Candidate | Votes | % | ±% |
| | Labor | Mark McGowan | 12,573 | 56.3 | +2.3 |
| | Liberal | Paul Ellis | 7,108 | 31.8 | +7.3 |
| | Greens | Daniel Boulton | 1,040 | 4.7 | -1.1 |
| | Christian Democrats | June Lewis | 567 | 2.5 | +2.5 |
| | One Nation | Garth Stockden | 544 | 2.4 | -9.7 |
| | Family First | Carena Harvey | 416 | 1.9 | +1.9 |
| | Citizens Electoral Council | Rob Totten | 99 | 0.4 | +0.4 |
| Total formal votes | Total formal votes | Total formal votes | 22,347 | 94.5 | −0.7 |
| Informal votes | Informal votes | Informal votes | 1,311 | 5.5 | +0.7 |
| Turnout | Turnout | Turnout | 23,658 | 90.7 | |
| Two-party-preferred result ||||||
| | Labor | Mark McGowan | 13,925 | 62.3 | -3.7 |
| | Liberal | Paul Ellis | 8,413 | 37.7 | +3.7 |
| | Labor hold | Labor hold | Swing | -3.7 | |
2001 Western Australian state election: Rockingham :
| Party | Party | Candidate | Votes | % | ±% |
| | Labor | Mark McGowan | 11,136 | 53.7 | +5.2 |
| | Liberal | Jodie Payne | 5,180 | 25.0 | -9.9 |
| | One Nation | Max Fiannaca | 2,486 | 12.0 | +12.0 |
| | Greens | Monique Keel | 1,219 | 5.9 | -0.1 |
| | Democrats | Dean Richter | 579 | 2.8 | -1.3 |
| | Seniors Party | Gordon Heyes | 140 | 0.7 | +0.7 |
| Total formal votes | Total formal votes | Total formal votes | 20,740 | 95.3 | −0.4 |
| Informal votes | Informal votes | Informal votes | 1,025 | 4.7 | +0.4 |
| Turnout | Turnout | Turnout | 21,765 | 91.6 | |
| Two-party-preferred result ||||||
| | Labor | Mark McGowan | 13,471 | 65.6 | +8.1 |
| | Liberal | Jodie Payne | 7,061 | 34.4 | -8.1 |
| | Labor hold | Labor hold | Swing | +8.1 | |

### Elections in the 1990s

1996 Western Australian state election: Rockingham :
| Party | Party | Candidate | Votes | % | ±% |
| | Labor | Mark McGowan | 9,759 | 48.5 | +3.3 |
| | Liberal | Rob Brown | 7,029 | 34.9 | +8.8 |
| | Greens | Bob Goodale | 1,211 | 6.0 | +2.4 |
| | Democrats | Barbara Edwards | 821 | 4.1 | +2.2 |
| | | Mal McFetridge | 681 | 3.4 | +3.4 |
| | Independent | Arthur Galletly | 420 | 2.1 | +0.8 |
| | | Frans Schutte | 195 | 1.0 | +1.0 |
| Total formal votes | Total formal votes | Total formal votes | 20,116 | 95.7 | +0.2 |
| Informal votes | Informal votes | Informal votes | 895 | 4.3 | −0.2 |
| Turnout | Turnout | Turnout | 21,011 | 91.0 | |
| Two-party-preferred result ||||||
| | Labor | Mark McGowan | 11,531 | 57.5 | +3.4 |
| | Liberal | Rob Brown | 8,530 | 42.5 | -3.4 |
| | Labor hold | Labor hold | Swing | +3.4 | |
1993 Western Australian state election: Rockingham :
| Party | Party | Candidate | Votes | % | ±% |
| | Labor | Mike Barnett | 9,391 | 46.4 | -3.8 |
| | Liberal | Kathleen Harste | 5,135 | 25.4 | -11.6 |
| | Independent | Laurie Smith | 3,822 | 18.9 | +18.9 |
| | Greens | Barbara Gilchrist | 717 | 3.5 | +3.5 |
| | Independent | Allan Hill | 508 | 2.5 | +2.5 |
| | Democrats | John Anderson | 397 | 2.0 | +2.0 |
| | Independent | Arthur Galletly | 260 | 1.3 | +1.3 |
| Total formal votes | Total formal votes | Total formal votes | 20,230 | 95.3 | +3.8 |
| Informal votes | Informal votes | Informal votes | 995 | 4.7 | −3.8 |
| Turnout | Turnout | Turnout | 21,225 | 94.2 | +1.7 |
| Two-party-preferred result ||||||
| | Labor | Mike Barnett | 11,217 | 55.5 | +1.4 |
| | Liberal | Kathleen Harste | 9,013 | 44.5 | -1.4 |
| | Labor hold | Labor hold | Swing | +1.4 | |

### Elections in the 1980s

1989 Western Australian state election: Rockingham :
| Party | Party | Candidate | Votes | % | ±% |
| | Labor | Mike Barnett | 8,333 | 50.2 | -12.5 |
| | Liberal | Robert Douglas | 6,137 | 37.0 | +2.9 |
| | Grey Power | Elsie Pledge | 2,135 | 12.8 | +12.8 |
| Total formal votes | Total formal votes | Total formal votes | 16,615 | 91.5 | |
| Informal votes | Informal votes | Informal votes | 1,533 | 8.5 | |
| Turnout | Turnout | Turnout | 18,148 | 92.5 | |
| Two-party-preferred result ||||||
| | Labor | Mike Barnett | 8,986 | 54.1 | -10.2 |
| | Liberal | Robert Douglas | 7,629 | 45.9 | +10.2 |
| | Labor hold | Labor hold | Swing | -10.2 | |
1986 Western Australian state election: Rockingham :
| Party | Party | Candidate | Votes | % | ±% |
| | Labor | Mike Barnett | 12,407 | 62.9 | -6.8 |
| | Liberal | Robert Douglas | 6,633 | 33.6 | +3.3 |
| | Independent | Patricia Todd | 676 | 3.4 | +3.4 |
| Total formal votes | Total formal votes | Total formal votes | 19,716 | 97.4 | −0.6 |
| Informal votes | Informal votes | Informal votes | 516 | 2.6 | +0.6 |
| Turnout | Turnout | Turnout | 20,232 | 92.4 | +1.5 |
| Two-party-preferred result ||||||
| | Labor | Mike Barnett | 12,737 | 64.6 | -5.1 |
| | Liberal | Robert Douglas | 6,979 | 35.4 | +5.1 |
| | Labor hold | Labor hold | Swing | -5.1 | |
1983 Western Australian state election: Rockingham :
| Party | Party | Candidate | Votes | % |
| | Labor | Mike Barnett | 10,260 | 69.7 |
| | Liberal | Maureen Mileham | 4,466 | 30.3 |
| Total formal votes | Total formal votes | Total formal votes | 14,726 | 98.0 |
| Informal votes | Informal votes | Informal votes | 296 | 2.0 |
| Turnout | Turnout | Turnout | 15,022 | 90.9 |
| | Labor hold | Labor hold | Swing | |
1980 Western Australian state election: Rockingham :
| Party | Party | Candidate | Votes | % | ±% |
| | Labor | Mike Barnett | 7,144 | 63.4 | +9.4 |
| | Liberal | Edward Smeding | 4,124 | 36.6 | -9.4 |
| Total formal votes | Total formal votes | Total formal votes | 11,268 | 97.7 | −0.6 |
| Informal votes | Informal votes | Informal votes | 262 | 2.3 | +0.6 |
| Turnout | Turnout | Turnout | 11,530 | 90.5 | −2.0 |
| | Labor hold | Labor hold | Swing | +9.4 | |

### Elections in the 1970s

1977 Western Australian state election: Rockingham :
| Party | Party | Candidate | Votes | % |
| | Labor | Mike Barnett | 4,843 | 54.0 |
| | Liberal | Ernest England | 4,125 | 46.0 |
| Total formal votes | Total formal votes | Total formal votes | 8,968 | 98.3 |
| Informal votes | Informal votes | Informal votes | 158 | 1.7 |
| Turnout | Turnout | Turnout | 9,126 | 92.5 |
| | Labor hold | Labor hold | Swing | |
1974 Western Australian state election: Rockingham :
| Party | Party | Candidate | Votes | % |
| | Labor | Mike Barnett | 3,573 | 46.8 |
| | Liberal | Reginald Ritchie | 3,146 | 41.2 |
| | National Alliance | Ronald Harman | 629 | 8.2 |
| | Independent | Eric Edwards | 289 | 3.8 |
| Total formal votes | Total formal votes | Total formal votes | 7,637 | 95.7 |
| Informal votes | Informal votes | Informal votes | 340 | 4.3 |
| Turnout | Turnout | Turnout | 7,977 | 90.3 |
| Two-party-preferred result ||||||
| | Labor | Mike Barnett | 3,887 | 50.9 |
| | Liberal | Reginald Ritchie | 3,750 | 49.1 |
| | Labor hold | Labor hold | Swing | |