# Electoral results for the Division of Diamond Valley

This is a list of electoral results for the Division of Diamond Valley in Australian federal elections from the electorate's creation in 1969 until its abolition in 1984.

## Members

| Member | Party | Term |
| Neil Brown | Liberal | 1969–1972 |
| David McKenzie | Labor | 1972–1975 |
| Neil Brown | Liberal | 1975–1983 |
| Peter Staples | Labor | 1983–1984 |

## Election results
### Elections in the 1980s
#### 1983

1983 Australian federal election: Diamond Valley :
| Party | Party | Candidate | Votes | % | ±% |
| | Labor | Peter Staples | 36,726 | 46.4 | +6.0 |
| | Liberal | Neil Brown | 36,006 | 45.5 | -3.1 |
| | Democrats | Lynden Kenyon | 5,162 | 6.5 | -4.5 |
| | Democratic Labor | Anne-Marie Petrucco | 1,229 | 1.6 | +1.6 |
| Total formal votes | Total formal votes | Total formal votes | 79,123 | 98.1 | |
| Informal votes | Informal votes | Informal votes | 1,492 | 1.9 | |
| Turnout | Turnout | Turnout | 80,615 | 97.6 | |
| Two-party-preferred result ||||||
| | Labor | Peter Staples | 39,907 | 50.4 | +4.1 |
| | Liberal | Neil Brown | 39,216 | 49.6 | -4.1 |
| | Labor gain from Liberal | Labor gain from Liberal | Swing | +4.1 | |

#### 1980

1980 Australian federal election: Diamond Valley :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | Neil Brown | 35,082 | 48.6 | +0.1 |
| | Labor | John Scomparin | 29,186 | 40.4 | +9.2 |
| | Democrats | Geoffrey Loftus-Hills | 7,936 | 11.0 | -5.2 |
| Total formal votes | Total formal votes | Total formal votes | 72,204 | 98.0 | |
| Informal votes | Informal votes | Informal votes | 1,438 | 2.0 | |
| Turnout | Turnout | Turnout | 73,642 | 96.3 | |
| Two-party-preferred result ||||||
| | Liberal | Neil Brown | 38,750 | 53.7 | -6.6 |
| | Labor | John Scomparin | 33,454 | 46.3 | +6.6 |
| | Liberal hold | Liberal hold | Swing | -6.6 | |

### Elections in the 1970s
#### 1977

1977 Australian federal election: Diamond Valley :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | Neil Brown | 31,674 | 48.5 | -7.7 |
| | Labor | Jean Downing | 20,355 | 31.2 | -6.9 |
| | Democrats | Ronald Goldman | 10,561 | 16.2 | +16.2 |
| | Democratic Labor | Christopher Curtis | 2,672 | 4.1 | +1.0 |
| Total formal votes | Total formal votes | Total formal votes | 65,262 | 98.2 | |
| Informal votes | Informal votes | Informal votes | 1,173 | 1.8 | |
| Turnout | Turnout | Turnout | 66,435 | 96.7 | |
| Two-party-preferred result ||||||
| | Liberal | Neil Brown | | 60.3 | +0.0 |
| | Labor | Jean Downing | | 39.7 | -0.0 |
| | Liberal hold | Liberal hold | Swing | +0.0 | |

#### 1975

1975 Australian federal election: Diamond Valley :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | Neil Brown | 47,975 | 55.0 | +10.2 |
| | Labor | David McKenzie | 34,252 | 39.3 | -7.8 |
| | Democratic Labor | Christopher Curtis | 2,691 | 3.1 | -2.2 |
| | Australia | John Franceschini | 1,308 | 1.5 | -0.9 |
| | Independent | Marc Aussie-Stone | 778 | 0.9 | +0.9 |
| | Independent | John Duncan | 198 | 0.2 | +0.2 |
| Total formal votes | Total formal votes | Total formal votes | 87,202 | 98.6 | |
| Informal votes | Informal votes | Informal votes | 1,202 | 1.4 | |
| Turnout | Turnout | Turnout | 88,404 | 96.2 | |
| Two-party-preferred result ||||||
| | Liberal | Neil Brown | | 59.1 | +9.8 |
| | Labor | David McKenzie | | 40.9 | -9.8 |
| | Liberal gain from Labor | Liberal gain from Labor | Swing | +9.8 | |

#### 1974

1974 Australian federal election: Diamond Valley :
| Party | Party | Candidate | Votes | % | ±% |
| | Labor | David McKenzie | 38,519 | 47.1 | +1.9 |
| | Liberal | Geoffrey Waite | 36,683 | 44.8 | +5.8 |
| | Democratic Labor | Christopher Curtis | 4,249 | 5.2 | -1.9 |
| | Australia | Harold Taskis | 1,987 | 2.4 | -3.9 |
| | Independent | Victor Gibson | 394 | 0.5 | +0.5 |
| Total formal votes | Total formal votes | Total formal votes | 81,832 | 98.6 | |
| Informal votes | Informal votes | Informal votes | 1,172 | 1.4 | |
| Turnout | Turnout | Turnout | 83,004 | 95.7 | |
| Two-party-preferred result ||||||
| | Labor | David McKenzie | 41,495 | 50.7 | -0.9 |
| | Liberal | Geoffrey Waite | 40,337 | 49.3 | +0.9 |
| | Labor hold | Labor hold | Swing | -0.9 | |

#### 1972

1972 Australian federal election: Diamond Valley :
| Party | Party | Candidate | Votes | % | ±% |
| | Labor | David McKenzie | 30,927 | 45.2 | +3.9 |
| | Liberal | Neil Brown | 26,651 | 39.0 | -6.7 |
| | Democratic Labor | Jim Marmion | 4,876 | 7.1 | -3.4 |
| | Australia | John Siddons | 4,314 | 6.3 | +3.8 |
| | Defence of Government Schools | Douglas Alexander | 1,489 | 2.2 | +2.2 |
| | Independent | Shaun Redmond | 145 | 0.2 | +0.2 |
| Total formal votes | Total formal votes | Total formal votes | 68,402 | 97.5 | |
| Informal votes | Informal votes | Informal votes | 1,761 | 2.5 | |
| Turnout | Turnout | Turnout | 70,163 | 96.7 | |
| Two-party-preferred result ||||||
| | Labor | David McKenzie | | 51.6 | +7.7 |
| | Liberal | Neil Brown | | 48.4 | -7.7 |
| | Labor gain from Liberal | Labor gain from Liberal | Swing | +7.7 | |

### Elections in the 1960s
#### 1969

1969 Australian federal election: Diamond Valley :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | Neil Brown | 24,403 | 45.7 | -2.2 |
| | Labor | David McKenzie | 22,021 | 41.3 | +8.0 |
| | Democratic Labor | Leo Morison | 5,596 | 10.5 | -1.2 |
| | Australia | John Hill | 1,354 | 2.5 | +2.5 |
| Total formal votes | Total formal votes | Total formal votes | 53,374 | 97.4 | |
| Informal votes | Informal votes | Informal votes | 1,443 | 2.6 | |
| Turnout | Turnout | Turnout | 54,817 | 96.3 | |
| Two-party-preferred result ||||||
| | Liberal | Neil Brown | 29,927 | 56.1 | -6.0 |
| | Labor | David McKenzie | 23,447 | 43.9 | +6.0 |
| | Liberal notional hold | Liberal notional hold | Swing | -6.0 | |