| Time in office | Jurisdiction | Party | Answer | % Correct |
|---|---|---|---|---|
| 11 years, 267 days | Federal | Liberal | John Howard | 100%
|
| 11 years, 325 days | Tasmania/Federal | Labor/United Australia | Joseph Lyons | 100%
|
| 19 years, 114 days | Queensland | Country & National | Sir Joh Bjelke-Petersen | 100%
|
| 10 years, 48 days | Western Australia | Pro-Forrest | Sir John Forrest | 100%
|
| 18 years, 163 days | Federal | United Australia/Liberal | Sir Robert Menzies | 100%
|
| 10 years, 180 days(Incumbent) | Australian Capital Territory | Labor | Andrew Barr | 75%
|
| 9 years, 299 days | South Australia | Labor | John Bannon | 75%
|
| 10 years, 179 days | Victoria | Country | Sir Albert Dunstan | 75%
|
| 17 years, 77 days | Victoria | Liberal & Country/Liberal | Sir Henry Bolte | 75%
|
| 11 years, 278 days | New South Wales | Free Trade | Sir Henry Parkes | 75%
|
| 26 years, 125 days | South Australia | Liberal & Country League | Sir Thomas Playford IV | 75%
|
| 10 years, 121 days | New South Wales | Labor | Bob Carr | 50%
|
| 13 years, 240 days | Tasmania | Labor | Eric Reece | 50%
|
| 9 years, 230 days | South Australia | Labor | Mike Rann | 50%
|
| 10 years, 51 days | New South Wales | Labor | Neville Wran | 50%
|
| 10 years, 158 days | Queensland | Country | Sir Francis Nicklin | 50%
|
| 9 years, 236 days | New South Wales | Liberal | Sir Robert Askin | 50%
|
| 18 years, 182 days | Tasmania | Labor | Sir Robert Cosgrove | 50%
|
| 10 years, 91 days | Queensland | Labor | William Forgan Smith | 50%
|
| 11 years, 335 days | Western Australia | Liberal | Sir David Brand | 25%
|