List of prime ministers of New Zealand by age
Introduction This is a list of '''prime ministers of New Zealand by age''', including when they were born, what age they were when they were appointed prime minister, what age they were when they left the office and the age at which they died, or their current age as of  if they are still alive. The table can be sorted by each different category.The date of appointment is the date on which they were sworn in by the governor-general for their first term. The day on which they departed office is the final day of their final term. This is either the day a new prime minister was appointed or their date of death if they died whilst in office.
Overview The oldest living prime minister is Jim Bolger, born 31 May 1935 (aged ). The youngest living former prime minister is Jacinda Ardern, born 26 July 1980 (aged ).The longest-lived prime minister is also Jim Bolger who is currently aged . George Grey was the second longest-lived prime minister who lived to the age of . Bolger surpassed Grey's lifespan on 6 November 2021.The second oldest-living prime minister, Geoffrey Palmer, will tie Grey if he lives to 27 September 2028.The shortest-lived prime minister was Norman Kirk, who died in office at the age of 51 years, 237 days.The prime minister with the longest retirement is Robert Stout. He left office on 8 October 1887, and died 42 years, and 284 days later on 19 July 1930.The prime minister with the shortest retirement is Joseph Ward, who died on 8 July 1930, 41 days after he left office on 28 May 1930. '''Key:''' # Prime minister Date of birth Start date of (first) term Age at beginning of (first) term End date of (final) term Age at leaving office Total time in office Total time after leaving office Date of death Lifespan 1    48-243   00,013 days    days () 2    44-000   01,609 days    days () 3    37-040   03,248 days    days () 4    51-078   00,450 days    days () 5    51-190   00,913 days    days () 6    41-199   00,326 days    days () 7    48-188   00,143 days    days () 8    38-043   01,018 days    days () 9    62-034   00,224 days    days () 10    44-305   01,943 days    days () 11    65-182   00,725 days    days () 12 Hall, JohnJohn Hall   54-294   00,926 days    days () 13    39-323   01,142 days    days () 14    51-303   N/A 00,824 days  N/A   days () 15    47-309   N/A 04,791 days  N/A   days () 16 Hall-Jones, WilliamWilliam Hall-Jones   55-145   00,057 days    days () 17    50-102   02,595 days    days () 18    58-018   00,104 days    days () 19    56-106   N/A 04,687 days  N/A   days () 20 Bell, FrancisFrancis Bell   74-040   00,020 days    days () 21    47-116   01,290 days    days () 22 Forbes, GeorgeGeorge Forbes   61-077   02,018 days    days () 23 Savage, Michael JosephMichael Joseph Savage   63-258  N/A 01,573 days N/A   days () 24    55-212   03,548 days    days () 25    56-056   02,838 days    days () 26    53-221   04,157 days    days () 27    75-303   01,096 days    days () 28    59-339   00,305 days    days () 29    49-337  N/A 00,631 days N/A   days () 30    46-295   00,462 days    days () 31    54-078   03,149 days    days () 32    41-357   01,839 days    days () 33    47-109   00,392 days  -- '' days'' ''()'' 34 Moore, MikeMike Moore   41-219   00,059 days    days () 35    55-155   02,593 days  -- '' days'' ''()'' 36    45-307   00,727 days  -- '' days'' ''()'' 37    49-282   03,272 days  -- '' days'' ''()'' 38    47-102   02,945 days  -- '' days'' ''()'' 39    54-347   00,318 days  -- '' days'' ''()'' 40    37-092   01,917 days  -- '' days'' ''()'' 41    44-142   00,306 days  -- '' days'' ''()'' 42    44-142 Incumbent Incumbent 00, days Incumbent -- '' days'' ''()'' # Prime minister Date of birth Start date of (first) term Age at beginning of (first) term End date of (final) term Age at leaving office Total time in office Length of retirement Date of death Lifespan
Records The three youngest people when they first became prime minister were:* Edward Stafford37* Jacinda Ardern37* Julius Vogel38The three oldest people when they first became prime minister were:* Walter Nash75* Francis Bell74* George Grey65The three oldest people to last leave the office of prime minister were:* Walter Nash78* Francis Bell74* Joseph Ward74The three youngest people to last leave the office of prime minister were:* Julius Vogel41* Mike Moore41* Frederick Weld42
Oldest living prime ministers of New Zealand Not all prime ministers live to become the oldest of their time. Of the 33 deceased prime ministers, 16 eventually became the oldest of their time, while 17 did not (including all 5 prime ministers who died in office, and 12 others). Jim Bolger has held this distinction since Bill Rowling's death on 31 October 1995 a record  so far. He surpassed the previous record held by Robert Stout on 24 November 2018.Robert Stout became the oldest living prime minister when John Hall died in 1907 and remained so until his death in 1930, for 23 years and 24 days.John Hall became the oldest living prime minister after the death of George Waterhouse, but he survived Waterhouse by only 323 days.On one occasion the oldest living prime minister lost this distinction not by his death, but due to the appointment of a prime minister who was older. Sidney Holland ceased to be the oldest living prime minister when Walter Nash was appointed. John Hall was the oldest to acquire this distinction at the age of 81 years, and 231 days. Francis Bell, who was 84 years, and 348 days old when he died, was the oldest prime minister to die without ever acquiring this distinction. Mike Moore, who died on 2 February 2020 at 71 years, and 5 days old is the most recent prime minister to die without ever acquiring this distinction. Prime Minister Became oldest living prime minister Ceased to be oldest living prime minister Age at start date Age at end date Duration (years, days)Henry SewellAlfred DomettWilliam FoxGeorge GreyEdward StaffordGeorge WaterhouseJohn HallRobert StoutWilliam Hall-JonesGeorge ForbesPeter FraserSidney HollandWalter NashKeith HolyoakeJack MarshallRobert MuldoonBill RowlingJim Bolger''Current oldest living prime minister''''Current oldest living prime minister'' Prime Minister Became oldest living prime minister Ceased to be oldest living prime minister Age at start date Age at end date Duration (years, days)
See also * List of prime ministers of New Zealand by place of birth
Notes