# Electoral results for the district of Rocky River

This is a list of election results for the electoral district of Rocky River in South Australian elections.

## Members for Rocky River

| Member | Party | Term |
| John Lyons | Liberal and Country | 1938–1948 |
| James Heaslip | Liberal and Country | 1949–1968 |
| Howard Venning | Liberal and Country | 1968–1974 |
| Howard Venning | Liberal | 1974–1979 |
| John Olsen | Liberal | 1979–1985 |

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

1982 South Australian state election: Rocky River :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | John Olsen | 8,943 | 56.4 | +7.3 |
| | Labor | Denis Crisp | 6,043 | 38.1 | +4.1 |
| | National | John Reilly | 522 | 3.3 | -13.6 |
| | Democrats | Gordon Weber | 354 | 2.2 | +2.2 |
| Total formal votes | Total formal votes | Total formal votes | 15,862 | 96.2 | −0.5 |
| Informal votes | Informal votes | Informal votes | 625 | 3.8 | +0.5 |
| Turnout | Turnout | Turnout | 16,487 | 94.7 | +0.2 |
| Two-party-preferred result ||||||
| | Liberal | John Olsen | 9,566 | 60.3 | -2.8 |
| | Labor | Denis Crisp | 6,296 | 39.7 | +2.8 |
| | Liberal hold | Liberal hold | Swing | -2.8 | |

### Elections in the 1970s

1979 South Australian state election: Rocky River :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | John Olsen | 7,672 | 49.1 | -8.9 |
| | Labor | Denis Crisp | 5,299 | 34.0 | -4.8 |
| | National Country | Helen Tiller | 2,639 | 16.9 | +4.9 |
| Total formal votes | Total formal votes | Total formal votes | 15,610 | 96.7 | −1.9 |
| Informal votes | Informal votes | Informal votes | 525 | 3.3 | +1.9 |
| Turnout | Turnout | Turnout | 16,135 | 94.5 | −0.9 |
| Two-party-preferred result ||||||
| | Liberal | John Olsen | 9,849 | 63.1 | +4.9 |
| | Labor | Denis Crisp | 5,761 | 36.9 | -4.9 |
| | Liberal hold | Liberal hold | Swing | +4.9 | |
1977 South Australian state election: Rocky River :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | Howard Venning | 6,344 | 40.2 | +2.1 |
| | Labor | Ted Connelly | 6,121 | 38.8 | +11.0 |
| | National | Peter Longmire | 1,908 | 12.0 | -8.7 |
| | Independent | Nevin Newbold | 1,417 | 9.0 | +9.0 |
| Total formal votes | Total formal votes | Total formal votes | 15,790 | 98.6 | |
| Informal votes | Informal votes | Informal votes | 219 | 1.4 | |
| Turnout | Turnout | Turnout | 18,009 | 95.4 | |
| Two-party-preferred result ||||||
| | Liberal | Howard Venning | 9,193 | 58.2 | -7.1 |
| | Labor | Ted Connelly | 6,597 | 41.8 | +7.1 |
| | Liberal hold | Liberal hold | Swing | -7.1 | |
1975 South Australian state election: Rocky River :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | Howard Venning | 4,151 | 42.2 | -5.6 |
| | National | Ian Bruce | 3,018 | 30.7 | +1.5 |
| | Labor | Hank Van Galen | 1,785 | 18.2 | -4.8 |
| | Liberal Movement | Clement Hampton | 878 | 8.9 | +8.9 |
| Total formal votes | Total formal votes | Total formal votes | 9,832 | 98.0 | −0.1 |
| Informal votes | Informal votes | Informal votes | 198 | 2.0 | +0.1 |
| Turnout | Turnout | Turnout | 10,030 | 96.5 | +0.6 |
| Two-candidate-preferred result ||||||
| | Liberal | Howard Venning | 5,984 | 60.9 | +10.7 |
| | National | Ian Bruce | 3,848 | 39.1 | -10.7 |
| | Liberal hold | Liberal hold | Swing | +10.7 | |
1973 South Australian state election: Rocky River :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal and Country | Howard Venning | 4,454 | 47.8 | -8.5 |
| | Country | Peter Longmire | 2,716 | 29.2 | +13.6 |
| | Labor | Nathan Smith | 2,147 | 23.0 | -5.1 |
| Total formal votes | Total formal votes | Total formal votes | 9,317 | 97.9 | −0.8 |
| Informal votes | Informal votes | Informal votes | 201 | 2.1 | +0.8 |
| Turnout | Turnout | Turnout | 9,518 | 95.9 | −0.2 |
| Two-candidate-preferred result ||||||
| | Liberal and Country | Howard Venning | 4,680 | 50.2 | -20.1 |
| | Country | Peter Longmire | 4,637 | 49.8 | +49.8 |
| | Liberal and Country hold | Liberal and Country hold | Swing | N/A | |
1970 South Australian state election: Rocky River :
| Party | Party | Candidate | Votes | % |
| | Liberal and Country | Howard Venning | 5,205 | 56.3 |
| | Labor | Nathan Smith | 2,602 | 28.1 |
| | National | Jack Groves | 1,446 | 15.6 |
| Total formal votes | Total formal votes | Total formal votes | 9,253 | 98.7 |
| Informal votes | Informal votes | Informal votes | 120 | 1.3 |
| Turnout | Turnout | Turnout | 9,373 | 96.1 |
| Two-party-preferred result ||||||
| | Liberal and Country | Howard Venning | 6,506 | 70.3 |
| | Labor | Nathan Smith | 2,747 | 29.7 |
| | Liberal and Country hold | Liberal and Country hold | Swing | |

### Elections in the 1960s

1968 South Australian state election: Rocky River :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal and Country | Howard Venning | 3,671 | 70.1 | +3.5 |
| | Labor | James Dunford | 1,565 | 29.9 | -3.5 |
| Total formal votes | Total formal votes | Total formal votes | 5,236 | 97.9 | −0.4 |
| Informal votes | Informal votes | Informal votes | 110 | 2.1 | +0.4 |
| Turnout | Turnout | Turnout | 5,346 | 96.4 | −0.1 |
| | Liberal and Country hold | Liberal and Country hold | Swing | +3.5 | |
1965 South Australian state election: Rocky River :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal and Country | James Heaslip | 3,652 | 66.6 | -33.4 |
| | Labor | George Smart | 1,832 | 33.4 | +33.4 |
| Total formal votes | Total formal votes | Total formal votes | 5,484 | 98.3 | |
| Informal votes | Informal votes | Informal votes | 96 | 1.7 | |
| Turnout | Turnout | Turnout | 5,580 | 96.5 | |
| | Liberal and Country hold | Liberal and Country hold | Swing | N/A | |
1962 South Australian state election: Rocky River :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal and Country | James Heaslip | unopposed | | |
| | Liberal and Country hold | Liberal and Country hold | Swing | | |

### Elections in the 1950s

1959 South Australian state election: Rocky River :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal and Country | James Heaslip | unopposed | | |
| | Liberal and Country hold | Liberal and Country hold | Swing | | |
1956 South Australian state election: Rocky River :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal and Country | James Heaslip | unopposed | | |
| | Liberal and Country hold | Liberal and Country hold | Swing | | |
1953 South Australian state election: Rocky River :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal and Country | James Heaslip | unopposed | | |
| | Liberal and Country hold | Liberal and Country hold | Swing | | |
1950 South Australian state election: Rocky River :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal and Country | James Heaslip | unopposed | | |
| | Liberal and Country hold | Liberal and Country hold | Swing | | |

### Elections in the 1940s

1947 South Australian state election: Rocky River :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal and Country | John Lyons | unopposed | | |
| | Liberal and Country hold | Liberal and Country hold | Swing | | |
1944 South Australian state election: Rocky River :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal and Country | John Lyons | 3,091 | 71.4 | -1.0 |
| | Labor | Leonard Wilcott | 1,237 | 28.6 | +1.0 |
| Total formal votes | Total formal votes | Total formal votes | 4,328 | 96.9 | −1.1 |
| Informal votes | Informal votes | Informal votes | 136 | 3.1 | +1.1 |
| Turnout | Turnout | Turnout | 4,464 | 89.8 | +28.2 |
| | Liberal and Country hold | Liberal and Country hold | Swing | -1.0 | |
1941 South Australian state election: Rocky River :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal and Country | John Lyons | 2,256 | 72.4 | +22.2 |
| | Labor | John Henry Jenner | 860 | 27.6 | +10.2 |
| Total formal votes | Total formal votes | Total formal votes | 3,116 | 98.0 | −0.4 |
| Informal votes | Informal votes | Informal votes | 65 | 2.0 | +0.4 |
| Turnout | Turnout | Turnout | 3,181 | 61.6 | −16.9 |
| | Liberal and Country hold | Liberal and Country hold | Swing | N/A | |

### Elections in the 1930s

1938 South Australian state election: Rocky River :
| Party | Party | Candidate | Votes | % |
| | Liberal and Country | John Lyons | 2,041 | 50.2 |
| | Independent | Michael Noonan | 712 | 17.5 |
| | Labor | Edgar Russell | 707 | 17.4 |
| | Independent | William Nicholls | 603 | 14.8 |
| Total formal votes | Total formal votes | Total formal votes | 4,063 | 98.4 |
| Informal votes | Informal votes | Informal votes | 66 | 1.6 |
| Turnout | Turnout | Turnout | 4,129 | 78.5 |
| | Liberal and Country hold | Liberal and Country hold | Swing | |
* Preferences were not distributed.