# Electoral results for the district of Bunbury

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

## Members for Bunbury

| Member | Party | Term |
| John Forrest | Ministerial | 1890–1901 |
| Thomas Hayward | Ministerial | 1901–1904 |
| Newton Moore | Ministerial | 1904–1911 |
| William Thomas | Labor | 1911–1917 |
| William Thomas | National Labor | 1917 |
| Griffin Money | Nationalist | 1917–1924 |
| Frederick Withers | Labor | 1924–1947 |
| James Murray | Liberal | 1947–1950 |
| Frank Guthrie | Labor | 1950–1955 |
| George Roberts | Liberal | 1955–1962 |
| Maurice Williams | Liberal | 1962–1973 |
| John Sibson | Liberal | 1973–1983 |
| Phil Smith | Labor | 1983–1993 |
| Ian Osborne | Liberal | 1993–2001 |
| Tony Dean | Labor | 2001–2005 |
| John Castrilli | Liberal | 2005–2017 |
| Don Punch | Labor | 2017–present |

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

2025 Western Australian state election: Bunbury :
| Party | Party | Candidate | Votes | % | ±% |
| | Labor | Don Punch | 9,772 | 41.8 | −18.7 |
| | Liberal | Heather Reid | 6,597 | 28.2 | +9.4 |
| | Greens | Patricia Perks | 2,142 | 9.2 | +4.4 |
| | Legalise Cannabis | John Bell | 1,391 | 5.9 | +3.6 |
| | One Nation | Shane Myles | 1,333 | 5.7 | +3.0 |
| | National | Codee-Lee Down | 1,242 | 5.3 | +0.9 |
| | Christians | Boyd Davey | 628 | 2.7 | +2.7 |
| | Shooters, Fishers, Farmers | Cameron Van Veen | 298 | 1.3 | −1.2 |
| Total formal votes | Total formal votes | Total formal votes | 23,403 | 95.8 | +0.4 |
| Informal votes | Informal votes | Informal votes | 1,017 | 4.2 | −0.4 |
| Turnout | Turnout | Turnout | 24,420 | 74.3 | −6.1 |
| Two-party-preferred result ||||||
| | Labor | Don Punch | 12,596 | 58.0 | −14.5 |
| | Liberal | Heather Reid | 9,121 | 42.0 | +14.5 |
| | Labor hold | Labor hold | Swing | −14.5 | |
2021 Western Australian state election: Bunbury :
| Party | Party | Candidate | Votes | % | ±% |
| | Labor | Don Punch | 14,791 | 60.5 | +16.9 |
| | Liberal | Matt Foreman | 4,604 | 18.8 | −3.6 |
| | Greens | Patricia Perks | 1,170 | 4.8 | −2.0 |
| | National | Codee-Lee Down | 1,081 | 4.4 | −9.4 |
| | One Nation | Gail Jones | 656 | 2.7 | −6.2 |
| | Shooters, Fishers, Farmers | Shane Hastie | 615 | 2.5 | −1.0 |
| | Legalise Cannabis | Kelly Hibbert | 582 | 2.4 | +2.4 |
| | Western Australia | Kieran Noonan | 415 | 1.7 | +1.7 |
| | No Mandatory Vaccination | Anthony Merrifield | 348 | 1.4 | +1.4 |
| | Sustainable Australia | James Minson | 158 | 0.6 | +0.6 |
| | WAxit | Dan Acatinca | 43 | 0.2 | −0.1 |
| Total formal votes | Total formal votes | Total formal votes | 24,463 | 95.5 | +0.2 |
| Informal votes | Informal votes | Informal votes | 1,163 | 4.5 | −0.2 |
| Turnout | Turnout | Turnout | 25,626 | 84.1 | −2.0 |
| Two-party-preferred result ||||||
| | Labor | Don Punch | 17,730 | 72.5 | +12.0 |
| | Liberal | Matt Foreman | 6,719 | 27.5 | −12.0 |
| | Labor hold | Labor hold | Swing | +12.0 | |

### Elections in the 2010s

2017 Western Australian state election: Bunbury :
| Party | Party | Candidate | Votes | % | ±% |
| | Labor | Don Punch | 10,099 | 43.9 | +14.4 |
| | Liberal | Ian Morison | 5,118 | 22.2 | −30.0 |
| | National | James Hayward | 3,162 | 13.7 | +6.4 |
| | One Nation | Samuel Brown | 2,050 | 8.9 | +8.9 |
| | Greens | Michael Baldock | 1,559 | 6.8 | +0.4 |
| | Shooters, Fishers, Farmers | Bernie Masters | 804 | 3.5 | +3.5 |
| | Flux the System! | Anthony Shannon | 172 | 0.7 | +0.7 |
| | Micro Business | Aldo Del Popolo | 65 | 0.3 | +0.3 |
| Total formal votes | Total formal votes | Total formal votes | 23,029 | 95.2 | +1.3 |
| Informal votes | Informal votes | Informal votes | 1,150 | 4.8 | −1.3 |
| Turnout | Turnout | Turnout | 24,179 | 86.5 | +0.9 |
| Two-party-preferred result ||||||
| | Labor | Don Punch | 14,003 | 60.8 | +23.0 |
| | Liberal | Ian Morison | 9,010 | 39.2 | −23.0 |
| | Labor gain from Liberal | Labor gain from Liberal | Swing | +23.0 | |
2013 Western Australian state election: Bunbury :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | John Castrilli | 10,375 | 52.7 | +0.7 |
| | Labor | Karen Steele | 5,595 | 28.4 | –1.2 |
| | National | James Forsyth | 1,562 | 7.9 | +6.8 |
| | Greens | Mitchella Hutchins | 1,250 | 6.4 | –2.6 |
| | Family First | Linda Rose | 374 | 1.9 | –4.0 |
| | Independent | Lua Alfa Conedoli | 285 | 1.4 | +1.4 |
| | Christians | Edward Dabrowski | 243 | 1.2 | –0.9 |
| Total formal votes | Total formal votes | Total formal votes | 19,684 | 93.7 | −1.5 |
| Informal votes | Informal votes | Informal votes | 1,320 | 6.3 | +1.5 |
| Turnout | Turnout | Turnout | 21,004 | 89.2 | |
| Two-party-preferred result ||||||
| | Liberal | John Castrilli | 12,420 | 63.1 | +2.0 |
| | Labor | Karen Steele | 7,255 | 36.9 | –2.0 |
| | Liberal hold | Liberal hold | Swing | +2.0 | |

### Elections in the 2000s

2008 Western Australian state election: Bunbury :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | John Castrilli | 9,400 | 53.58 | +12.2 |
| | Labor | Peter MacFarlane | 5,192 | 29.60 | −12.7 |
| | Greens | Peter Eckersley | 1,591 | 9.07 | +3.0 |
| | Family First | Mandy Roberts | 1,009 | 5.75 | +1.9 |
| | Christian Democrats | Edward Dabrowski | 351 | 2.00 | +0.7 |
| Total formal votes | Total formal votes | Total formal votes | 17,543 | 95.35 | |
| Informal votes | Informal votes | Informal votes | 856 | 4.65 | |
| Turnout | Turnout | Turnout | 18,399 | 83.87 | |
| Two-party-preferred result ||||||
| | Liberal | John Castrilli | 10,825 | 61.73 | +12.6 |
| | Labor | Peter MacFarlane | 6,711 | 38.27 | −12.6 |
| | Liberal gain from Labor | Liberal gain from Labor | Swing | +12.6 | |
2005 Western Australian state election: Bunbury :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | John Castrilli | 5,478 | 43.1 | +4.4 |
| | Labor | Tony Dean | 5,344 | 42.0 | +7.8 |
| | Greens | Joshua Ledger | 746 | 5.9 | −0.5 |
| | Family First | Mandy Roberts | 426 | 3.3 | +3.3 |
| | One Nation | Brian McRae | 300 | 2.4 | −7.9 |
| | Independent | Jodie Murray | 188 | 1.5 | +1.5 |
| | Christian Democrats | Shane Flanegan | 139 | 1.1 | +1.1 |
| | Independent | Chris Cox | 102 | 0.8 | +0.8 |
| Total formal votes | Total formal votes | Total formal votes | 12,723 | 95.2 | −0.3 |
| Informal votes | Informal votes | Informal votes | 646 | 4.8 | +0.3 |
| Turnout | Turnout | Turnout | 13,369 | 90.9 | |
| Two-party-preferred result ||||||
| | Liberal | John Castrilli | 6,397 | 50.4 | +0.6 |
| | Labor | Tony Dean | 6,294 | 49.6 | −0.6 |
| | Liberal gain from Labor | Liberal gain from Labor | Swing | +0.6 | |
2001 Western Australian state election: Bunbury :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | Ian Osborne | 4,260 | 36.2 | −11.5 |
| | Labor | Tony Dean | 4,092 | 34.7 | +1.2 |
| | One Nation | Alan Giorgi | 1,233 | 10.5 | +10.5 |
| | Independent | Brendan Kelly | 1,128 | 9.6 | +9.6 |
| | Greens | Marilyn Palmer | 749 | 6.4 | +1.2 |
| | Democrats | Ron Hellyer | 149 | 1.3 | −1.0 |
| | Independent | Alfred Bussell | 68 | 0.6 | +0.6 |
| | Independent | Geoffrey | 52 | 0.4 | +0.4 |
| | Independent | Mary Lupi | 48 | 0.4 | +0.4 |
| Total formal votes | Total formal votes | Total formal votes | 11,779 | 95.6 | −0.4 |
| Informal votes | Informal votes | Informal votes | 548 | 4.4 | +0.4 |
| Turnout | Turnout | Turnout | 12,327 | 90.7 | |
| Two-party-preferred result ||||||
| | Labor | Tony Dean | 6,020 | 51.5 | +6.8 |
| | Liberal | Ian Osborne | 5,674 | 48.5 | −6.8 |
| | Labor gain from Liberal | Labor gain from Liberal | Swing | +6.8 | |

### Elections in the 1990s

1996 Western Australian state election: Bunbury :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | Ian Osborne | 5,322 | 47.7 | +2.1 |
| | Labor | Barry Down | 3,740 | 33.5 | −9.9 |
| | Independent | Mary Collins | 1,069 | 9.6 | +9.6 |
| | Greens | Joan Jenkins | 585 | 5.2 | −1.3 |
| | Democrats | Ronald Hellyer | 256 | 2.3 | +2.1 |
| | Independent | Joanne Hill | 195 | 1.7 | +1.7 |
| Total formal votes | Total formal votes | Total formal votes | 11,167 | 96.0 | −0.6 |
| Informal votes | Informal votes | Informal votes | 467 | 4.0 | +0.6 |
| Turnout | Turnout | Turnout | 11,634 | 91.1 | |
| Two-party-preferred result ||||||
| | Liberal | Ian Osborne | 6,166 | 55.3 | +5.0 |
| | Labor | Barry Down | 4,993 | 44.7 | −5.0 |
| | Liberal hold | Liberal hold | Swing | +5.0 | |
1993 Western Australian state election: Bunbury :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | Ian Osborne | 4,659 | 47.3 | +4.3 |
| | Labor | Phil Smith | 4,190 | 42.5 | −5.2 |
| | Greens | Marilyn Palmer | 671 | 6.8 | +6.8 |
| | Independent | Ronald Waldron | 333 | 3.4 | +3.4 |
| Total formal votes | Total formal votes | Total formal votes | 9,853 | 96.8 | +2.5 |
| Informal votes | Informal votes | Informal votes | 328 | 3.2 | −2.5 |
| Turnout | Turnout | Turnout | 10,181 | 95.2 | +3.7 |
| Two-party-preferred result ||||||
| | Liberal | Ian Osborne | 5,084 | 51.6 | +3.1 |
| | Labor | Phil Smith | 4,769 | 48.4 | −3.1 |
| | Liberal gain from Labor | Liberal gain from Labor | Swing | +3.1 | |

### Elections in the 1980s

1989 Western Australian state election: Bunbury :
| Party | Party | Candidate | Votes | % | ±% |
| | Labor | Phil Smith | 4,402 | 47.7 | −6.9 |
| | Liberal | Raymond Bosustow | 3,969 | 43.0 | −0.9 |
| | Grey Power | Margaret Charnley | 402 | 4.4 | +4.4 |
| | Independent | Judyth Salom | 349 | 3.8 | +3.8 |
| | Citizens Electoral Council | David Morrissey | 113 | 1.2 | +1.2 |
| Total formal votes | Total formal votes | Total formal votes | 9,235 | 94.3 | |
| Informal votes | Informal votes | Informal votes | 554 | 5.7 | |
| Turnout | Turnout | Turnout | 9,789 | 91.5 | |
| Two-party-preferred result ||||||
| | Labor | Phil Smith | 4,759 | 51.5 | −3.9 |
| | Liberal | Raymond Bosustow | 4,476 | 48.5 | +3.9 |
| | Labor hold | Labor hold | Swing | −3.9 | |
1986 Western Australian state election: Bunbury :
| Party | Party | Candidate | Votes | % | ±% |
| | Labor | Phil Smith | 4,531 | 54.6 | +3.4 |
| | Liberal | John Sibson | 3,644 | 43.9 | −1.9 |
| | Independent | Alfred Bussell | 131 | 1.6 | +1.6 |
| Total formal votes | Total formal votes | Total formal votes | 8,306 | 97.8 | +0.6 |
| Informal votes | Informal votes | Informal votes | 186 | 2.2 | −0.6 |
| Turnout | Turnout | Turnout | 8,492 | 92.3 | +1.4 |
| Two-party-preferred result ||||||
| | Labor | Phil Smith | 4,601 | 55.4 | +2.7 |
| | Liberal | John Sibson | 3,705 | 44.6 | −2.7 |
| | Labor hold | Labor hold | Swing | +2.7 | |
1983 Western Australian state election: Bunbury :
| Party | Party | Candidate | Votes | % |
| | Labor | Phil Smith | 4,011 | 51.2 |
| | Liberal | John Sibson | 3,588 | 45.7 |
| | Democrats | Donald Stewart | 243 | 3.1 |
| Total formal votes | Total formal votes | Total formal votes | 7,842 | 97.2 |
| Informal votes | Informal votes | Informal votes | 227 | 2.8 |
| Turnout | Turnout | Turnout | 8,069 | 90.9 |
| Two-party-preferred result ||||||
| | Labor | Phil Smith | 4,133 | 52.7 |
| | Liberal | John Sibson | 3,709 | 47.3 |
| | Labor gain from Liberal | Labor gain from Liberal | Swing | |
1980 Western Australian state election: Bunbury :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | John Sibson | 4,087 | 48.7 | −5.8 |
| | Labor | Phil Smith | 3,813 | 45.5 | 0.0 |
| | Democrats | Donald Stewart | 483 | 5.8 | +5.8 |
| Total formal votes | Total formal votes | Total formal votes | 8,383 | 97.5 | −0.9 |
| Informal votes | Informal votes | Informal votes | 217 | 2.5 | +0.9 |
| Turnout | Turnout | Turnout | 8,600 | 90.8 | −1.9 |
| Two-party-preferred result ||||||
| | Liberal | John Sibson | 4,304 | 51.3 | −3.2 |
| | Labor | Phil Smith | 4,079 | 48.7 | +3.2 |
| | Liberal hold | Liberal hold | Swing | −3.2 | |

### Elections in the 1970s

1977 Western Australian state election: Bunbury :
| Party | Party | Candidate | Votes | % |
| | Liberal | John Sibson | 4,357 | 54.5 |
| | Labor | David Smith | 3,643 | 45.5 |
| Total formal votes | Total formal votes | Total formal votes | 8,000 | 98.4 |
| Informal votes | Informal votes | Informal votes | 131 | 1.6 |
| Turnout | Turnout | Turnout | 8,131 | 92.7 |
| | Liberal hold | Liberal hold | Swing | |
1974 Western Australian state election: Bunbury :
| Party | Party | Candidate | Votes | % |
| | Liberal | John Sibson | 3,705 | 50.3 |
| | Labor | Robert Wells | 3,657 | 49.7 |
| Total formal votes | Total formal votes | Total formal votes | 7,362 | 97.7 |
| Informal votes | Informal votes | Informal votes | 174 | 2.3 |
| Turnout | Turnout | Turnout | 7,536 | 94.9 |
| | Liberal hold | Liberal hold | Swing | |
1973 Bunbury state by-election :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | John Sibson | 3,479 | 51.0 | +7.6 |
| | Labor | Frank Kirwan | 3,337 | 49.0 | +3.1 |
| Total formal votes | Total formal votes | Total formal votes | 6,816 | 99.3 | +2.4 |
| Informal votes | Informal votes | Informal votes | 46 | 0.7 | −2.4 |
| Turnout | Turnout | Turnout | 6,862 | 87.8 | −6.1 |
| | Liberal hold | Liberal hold | Swing | −0.2 | |
1971 Western Australian state election: Bunbury :
| Party | Party | Candidate | Votes | % | ±% |
| | Labor | Robert Wells | 3,096 | 45.9 | +2.1 |
| | Liberal | Maurice Williams | 2,932 | 43.4 | −9.2 |
| | Democratic Labor | Michael Buswell | 451 | 6.7 | +3.1 |
| | Independent | Charles Turner | 272 | 4.0 | +4.0 |
| Total formal votes | Total formal votes | Total formal votes | 6,751 | 96.9 | −1.6 |
| Informal votes | Informal votes | Informal votes | 217 | 3.1 | +1.6 |
| Turnout | Turnout | Turnout | 6,968 | 93.9 | +0.2 |
| Two-party-preferred result ||||||
| | Liberal | Maurice Williams | 3,458 | 51.2 | −4.5 |
| | Labor | Robert Wells | 3,293 | 48.8 | +4.5 |
| | Liberal hold | Liberal hold | Swing | −4.5 | |

### Elections in the 1960s

1968 Western Australian state election: Bunbury :
| Party | Party | Candidate | Votes | % |
| | Liberal and Country | Maurice Williams | 3,107 | 52.6 |
| | Labor | Alexandra White | 2,584 | 43.8 |
| | Democratic Labor | John Guidera | 213 | 3.6 |
| Total formal votes | Total formal votes | Total formal votes | 5,904 | 98.5 |
| Informal votes | Informal votes | Informal votes | 88 | 1.5 |
| Turnout | Turnout | Turnout | 5,992 | 93.7 |
| Two-party-preferred result ||||||
| | Liberal and Country | Maurice Williams | 3,305 | 55.7 |
| | Labor | Alexandra White | 2,599 | 44.3 |
| | Liberal and Country hold | Liberal and Country hold | Swing | |
1965 Western Australian state election: Bunbury :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal and Country | Maurice Williams | 3,033 | 52.4 | −1.3 |
| | Labor | Edward Cooke | 2,755 | 47.6 | +1.3 |
| Total formal votes | Total formal votes | Total formal votes | 5,788 | 98.8 | −0.7 |
| Informal votes | Informal votes | Informal votes | 71 | 1.2 | +0.7 |
| Turnout | Turnout | Turnout | 5,859 | 94.7 | +0.6 |
| | Liberal and Country hold | Liberal and Country hold | Swing | −1.3 | |
1962 Bunbury state by-election :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal and Country | Maurice Williams | 2,572 | 48.2 | −5.5 |
| | Labor | Charles Webber | 2,483 | 46.5 | +0.2 |
| | Democratic Labor | Gilbert Handcock | 280 | 5.3 | +5.3 |
| Total formal votes | Total formal votes | Total formal votes | 5,335 | 99.3 | −0.2 |
| Informal votes | Informal votes | Informal votes | 37 | 0.7 | +0.2 |
| Turnout | Turnout | Turnout | 5,372 | 93.3 | −0.8 |
| Two-party-preferred result ||||||
| | Liberal and Country | Maurice Williams | 2,787 | 52.2 | −1.5 |
| | Labor | Charles Webber | 2,548 | 47.8 | +1.5 |
| | Liberal and Country hold | Liberal and Country hold | Swing | −1.5 | |
1962 Western Australian state election: Bunbury :
| Party | Party | Candidate | Votes | % |
| | Liberal and Country | George Roberts | 2,936 | 53.7 |
| | Labor | Charles Webber | 2,535 | 46.3 |
| Total formal votes | Total formal votes | Total formal votes | 5,471 | 99.5 |
| Informal votes | Informal votes | Informal votes | 25 | 0.5 |
| Turnout | Turnout | Turnout | 5,496 | 94.1 |
| | Liberal and Country hold | Liberal and Country hold | Swing | |

### Elections in the 1950s

1959 Western Australian state election: Bunbury :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal and Country | George Roberts | 3,337 | 54.0 | +3.1 |
| | Labor | Forrest Hay | 2,847 | 46.0 | −3.1 |
| Total formal votes | Total formal votes | Total formal votes | 6,184 | 99.0 | −0.1 |
| Informal votes | Informal votes | Informal votes | 64 | 1.0 | +0.1 |
| Turnout | Turnout | Turnout | 6,248 | 95.7 | −1.4 |
| | Liberal and Country hold | Liberal and Country hold | Swing | +3.1 | |
1956 Western Australian state election: Bunbury :
| Party | Party | Candidate | Votes | % |
| | Liberal and Country | George Roberts | 2,754 | 50.9 |
| | Labor | Charles Webber | 2,655 | 49.1 |
| Total formal votes | Total formal votes | Total formal votes | 5,409 | 99.1 |
| Informal votes | Informal votes | Informal votes | 49 | 0.9 |
| Turnout | Turnout | Turnout | 5,458 | 97.1 |
| | Liberal and Country gain from Labor | Liberal and Country gain from Labor | Swing | |
1955 Bunbury state by-election :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal and Country | George Roberts | 2,764 | 51.3 | +51.3 |
| | Labor | Charles Webber | 2,592 | 48.1 | N/A |
| | Independent Liberal | James Collins | 33 | 0.6 | +0.6 |
| Total formal votes | Total formal votes | Total formal votes | 5,389 | 99.3 | |
| Informal votes | Informal votes | Informal votes | 37 | 0.7 | |
| Turnout | Turnout | Turnout | 5,426 | 93.6 | |
| | Liberal and Country gain from Labor | Liberal and Country gain from Labor | Swing | N/A | |
1953 Western Australian state election: Bunbury :
| Party | Party | Candidate | Votes | % | ±% |
| | Labor | Frank Guthrie | unopposed | | |
| | Labor hold | Labor hold | Swing | | |
1950 Western Australian state election: Bunbury :
| Party | Party | Candidate | Votes | % |
| | Labor | Frank Guthrie | 2,186 | 49.0 |
| | Liberal and Country | James Murray | 1,632 | 36.6 |
| | Country | Percy Payne | 645 | 14.4 |
| Total formal votes | Total formal votes | Total formal votes | 4,463 | 99.1 |
| Informal votes | Informal votes | Informal votes | 41 | 0.9 |
| Turnout | Turnout | Turnout | 4,504 | 94.6 |
| Two-party-preferred result ||||||
| | Labor | Frank Guthrie | 2,340 | 52.4 |
| | Liberal and Country | James Murray | 2,123 | 47.6 |
| | Labor gain from Liberal and Country | Labor gain from Liberal and Country | Swing | |

### Elections in the 1940s

1947 Western Australian state election: Bunbury :
| Party | Party | Candidate | Votes | % | ±% |
| | Labor | John Kirke | 2,370 | 45.4 | −10.1 |
| | Liberal | James Murray | 1,517 | 29.0 | +29.0 |
| | Country | Albert Scott | 1,338 | 25.6 | −18.9 |
| Total formal votes | Total formal votes | Total formal votes | 5,225 | 98.7 | +0.5 |
| Informal votes | Informal votes | Informal votes | 69 | 1.3 | −0.5 |
| Turnout | Turnout | Turnout | 5,294 | 90.9 | +5.1 |
| Two-party-preferred result ||||||
| | Liberal | James Murray | 2,658 | 50.9 | +6.4 |
| | Labor | John Kirke | 2,567 | 49.1 | −6.4 |
| | Liberal gain from Labor | Liberal gain from Labor | Swing | +6.4 | |
1943 Western Australian state election: Bunbury :
| Party | Party | Candidate | Votes | % | ±% |
| | Labor | Frederick Withers | 2,565 | 55.5 | +1.6 |
| | Country | Jasper Norton | 2,060 | 44.5 | +18.3 |
| Total formal votes | Total formal votes | Total formal votes | 4,625 | 98.2 | −0.2 |
| Informal votes | Informal votes | Informal votes | 86 | 1.8 | +0.2 |
| Turnout | Turnout | Turnout | 4,711 | 85.8 | −8.4 |
| | Labor hold | Labor hold | Swing | N/A | |

### Elections in the 1930s

1939 Western Australian state election: Bunbury :
| Party | Party | Candidate | Votes | % | ±% |
| | Labor | Frederick Withers | 2,637 | 53.9 | −6.3 |
| | Country | Jasper Norton | 1,279 | 26.2 | +26.2 |
| | Nationalist | Vincent Donaldson | 973 | 19.9 | −19.9 |
| Total formal votes | Total formal votes | Total formal votes | 4,889 | 98.4 | −0.5 |
| Informal votes | Informal votes | Informal votes | 79 | 1.6 | +0.5 |
| Turnout | Turnout | Turnout | 4,968 | 94.2 | +22.4 |
| | Labor hold | Labor hold | Swing | N/A | |
1936 Western Australian state election: Bunbury :
| Party | Party | Candidate | Votes | % | ±% |
| | Labor | Frederick Withers | 2,136 | 60.2 | +4.8 |
| | Nationalist | Cuthbert Butler | 1,410 | 39.8 | −4.8 |
| Total formal votes | Total formal votes | Total formal votes | 3,546 | 98.9 | −0.1 |
| Informal votes | Informal votes | Informal votes | 38 | 1.1 | +0.1 |
| Turnout | Turnout | Turnout | 3,584 | 71.8 | −23.7 |
| | Labor hold | Labor hold | Swing | +4.8 | |
1933 Western Australian state election: Bunbury :
| Party | Party | Candidate | Votes | % | ±% |
| | Labor | Frederick Withers | 2,422 | 55.4 | +0.2 |
| | Nationalist | John Hands | 1,954 | 44.6 | −0.2 |
| Total formal votes | Total formal votes | Total formal votes | 4,376 | 99.0 | +0.2 |
| Informal votes | Informal votes | Informal votes | 45 | 1.0 | −0.2 |
| Turnout | Turnout | Turnout | 4,421 | 95.5 | +8.2 |
| | Labor hold | Labor hold | Swing | +0.2 | |
1930 Western Australian state election: Bunbury :
| Party | Party | Candidate | Votes | % |
| | Labor | Frederick Withers | 1,950 | 55.2 |
| | Nationalist | John Hands | 1,581 | 44.8 |
| Total formal votes | Total formal votes | Total formal votes | 3,531 | 99.2 |
| Informal votes | Informal votes | Informal votes | 28 | 0.8 |
| Turnout | Turnout | Turnout | 3,559 | 87.3 |
| | Labor hold | Labor hold | Swing | |

### Elections in the 1920s

1927 Western Australian state election: Bunbury :
| Party | Party | Candidate | Votes | % | ±% |
| | Labor | Frederick Withers | 1,916 | 59.8 | +13.0 |
| | Nationalist | Les Craig | 674 | 21.0 | −17.2 |
| | Nationalist | George Clarke | 616 | 19.2 | +19.2 |
| Total formal votes | Total formal votes | Total formal votes | 3,206 | 99.1 | +0.7 |
| Informal votes | Informal votes | Informal votes | 30 | 0.9 | −0.7 |
| Turnout | Turnout | Turnout | 3,236 | 87.6 | +13.4 |
| | Labor hold | Labor hold | Swing | N/A | |
* Preferences were not distributed.
1924 Western Australian state election: Bunbury :
| Party | Party | Candidate | Votes | % | ±% |
| | Labor | Frederick Withers | 1,251 | 46.8 | −2.4 |
| | Nationalist | Griffin Money | 1,021 | 38.2 | −12.6 |
| | Ind. Nationalist | Hannah Thomas | 399 | 14.9 | +14.9 |
| Total formal votes | Total formal votes | Total formal votes | 2,671 | 98.4 | −1.1 |
| Informal votes | Informal votes | Informal votes | 44 | 1.6 | +1.1 |
| Turnout | Turnout | Turnout | 2,715 | 74.2 | +6.0 |
| Two-party-preferred result ||||||
| | Labor | Frederick Withers | 1,346 | 50.4 | +1.2 |
| | Nationalist | Griffin Money | 1,325 | 49.6 | −1.2 |
| | Labor gain from Nationalist | Labor gain from Nationalist | Swing | +1.2 | |
1921 Western Australian state election: Bunbury :
| Party | Party | Candidate | Votes | % | ±% |
| | Nationalist | Griffin Money | 1,143 | 50.8 | +17.4 |
| | Labor | Frederick Withers | 1,108 | 49.2 | +23.0 |
| Total formal votes | Total formal votes | Total formal votes | 2,251 | 99.5 | +1.2 |
| Informal votes | Informal votes | Informal votes | 12 | 0.5 | −1.2 |
| Turnout | Turnout | Turnout | 2,263 | 68.2 | −8.1 |
| | Nationalist hold | Nationalist hold | Swing | N/A | |

### Elections in the 1910s

1917 Western Australian state election: Bunbury :
| Party | Party | Candidate | Votes | % | ±% |
| | National Labor | William Thomas | 898 | 40.4 | +40.4 |
| | Nationalist | Griffin Money | 742 | 33.4 | +33.4 |
| | Labor | Philip McKenna | 583 | 26.2 | –25.0 |
| Total formal votes | Total formal votes | Total formal votes | 2,223 | 98.3 | –1.1 |
| Informal votes | Informal votes | Informal votes | 39 | 1.7 | +1.1 |
| Turnout | Turnout | Turnout | 2,262 | 76.3 | +8.3 |
| Two-party-preferred result ||||||
| | Nationalist | Griffin Money | 1,222 | 55.0 | +55.0 |
| | National Labor | William Thomas | 1,001 | 45.0 | +45.0 |
| | Nationalist gain from National Labor | Nationalist gain from National Labor | Swing | +0.7 | |
1914 Western Australian state election: Bunbury :
| Party | Party | Candidate | Votes | % | ±% |
| | Labor | William Thomas | 1,397 | 51.6 | −3.3 |
| | Liberal | Griffin Money | 1,309 | 48.4 | +3.3 |
| Total formal votes | Total formal votes | Total formal votes | 2,706 | 99.4 | −0.3 |
| Informal votes | Informal votes | Informal votes | 16 | 0.6 | +0.3 |
| Turnout | Turnout | Turnout | 2,722 | 68.0 | −24.0 |
| | Labor hold | Labor hold | Swing | −3.3 | |
1911 Western Australian state election: Bunbury :
| Party | Party | Candidate | Votes | % |
| | Labor | William Thomas | 1,420 | 54.9 |
| | Ministerialist | John Ewing | 1,169 | 45.1 |
| Total formal votes | Total formal votes | Total formal votes | 2,589 | 99.7 |
| Informal votes | Informal votes | Informal votes | 8 | 0.3 |
| Turnout | Turnout | Turnout | 2,597 | 92.0 |
| | Labor gain from Ministerialist | Labor gain from Ministerialist | Swing | N/A |
1911 Bunbury state by-election :
| Party | Party | Candidate | Votes | % | ±% |
| | Labor | William Thomas | 931 | 55.3 | +55.3 |
| | Ministerialist | Edgar Zollner | 752 | 44.7 | N/A |
| Total formal votes | Total formal votes | Total formal votes | 1,683 | 99.4 | |
| Informal votes | Informal votes | Informal votes | 10 | 0.6 | |
| Turnout | Turnout | Turnout | 1,693 | 88.3 | |
| | Labor gain from Ministerialist | Labor gain from Ministerialist | Swing | N/A | |

### Elections in the 1900s

1908 Western Australian state election: Bunbury :
| Party | Party | Candidate | Votes | % | ±% |
| | Ministerialist | Newton Moore | unopposed | | |
| | Ministerialist hold | Ministerialist hold | Swing | | |
1905 Western Australian state election: Bunbury :
| Party | Party | Candidate | Votes | % | ±% |
| | Ministerialist | Newton Moore | unopposed | | |
| | Ministerialist hold | Ministerialist hold | Swing | | |
1905 Bunbury state by-election :
| Party | Party | Candidate | Votes | % | ±% |
| | Ministerialist | Newton Moore | 889 | 72.2 | +6.8 |
| | Labour | Thomas Griffiths | 343 | 27.8 | −6.8 |
| Total formal votes | Total formal votes | Total formal votes | 1,232 | 98.5 | −0.8 |
| Informal votes | Informal votes | Informal votes | 19 | 1.5 | +0.8 |
| Turnout | Turnout | Turnout | 1,251 | 49.2 | −11.6 |
| | Ministerialist hold | Ministerialist hold | Swing | +6.8 | |
1904 Western Australian state election: Bunbury :
| Party | Party | Candidate | Votes | % | ±% |
| | Ministerialist | Newton Moore | 1,088 | 65.4 | +20.1 |
| | Labour | Thomas Griffiths | 576 | 34.6 | +34.6 |
| Total formal votes | Total formal votes | Total formal votes | 1,664 | 99.3 | +0.8 |
| Informal votes | Informal votes | Informal votes | 11 | 0.7 | –0.8 |
| Turnout | Turnout | Turnout | 1,675 | 60.8 | –2.7 |
| | Ministerialist hold | Ministerialist hold | Swing | N/A | |
1901 Western Australian state election: Bunbury :
| Party | Party | Candidate | Votes | % | ±% |
| | Ministerialist | Thomas Hayward | 459 | 50.9 | +50.9 |
| | Ministerialist | Newton Moore | 409 | 45.3 | +45.3 |
| | Opposition | James Port | 34 | 3.8 | +3.8 |
| Total formal votes | Total formal votes | Total formal votes | 902 | 98.5 | n/a |
| Informal votes | Informal votes | Informal votes | 14 | 1.5 | n/a |
| Turnout | Turnout | Turnout | 916 | 63.5 | n/a |
| | Ministerialist hold | Ministerialist hold | Swing | N/A | |

### Elections in the 1890s

1897 Western Australian colonial election: Bunbury :
| Party | Party | Candidate | Votes | % | ±% |
| | Ministerialist | John Forrest | unopposed | | |
| | Ministerialist hold | Ministerialist hold | Swing | | |
1894 Western Australian colonial election: Bunbury :
| Party | Party | Candidate | Votes | % | ±% |
| | None | Sir John Forrest | unopposed | | |
1890 Western Australian colonial election: Bunbury :
| Party | Party | Candidate | Votes | % | ±% |
| | None | John Forrest | unopposed | | |