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The Division of North Sydney is an Australian electoral division in the state of New South Wales. It was proclaimed in 1900 and was one of the original 65 divisions contested at the first federal election.

North Sydney
Australian House of Representatives Division
Division of NORTH SYDNEY 2016.png
Division of North Sydney in New South Wales, as of the 2016 federal election.
MPTrent Zimmerman
PartyLiberal Party
NamesakeNorth Sydney, New South Wales
Electors109,278 (2019)
Area53 km2 (20.5 sq mi)
DemographicInner Metropolitan

Located along Sydney's Lower North Shore, the division is named after the suburb of North Sydney. It also includes the suburbs of Artarmon, Cammeray, Castlecrag, Crows Nest, Greenwich, Henley, Hunters Hill, Huntleys Cove, Huntleys Point, Kirribilli, Lane Cove, Lane Cove North, Lane Cove West, Lavender Bay, Linley Point, Longueville, McMahons Point, Middle Cove, Milsons Point, Naremburn, North Willoughby, Northbridge, Northwood, Riverview, St Leonards, Waverton, Willoughby, Willoughby East, Wollstonecraft, and Woolwich; as well as parts of Chatswood, Chatswood West, Cremorne, Gladesville, Gore Hill, and Neutral Bay.

Second only to the nearby Division of Wentworth, the Division of North Sydney has the nation's second highest proportion (56.4%) of high income families.[1] As with all North Shore seats, the division has usually been a comfortably safe seat for the Liberal Party of Australia and its predecessors. Labor has usually run dead in this seat, though it came within 3.1 percent of winning it at the 1943 election landslide. North Sydney and Wentworth are the only two federation divisions in New South Wales to have never been held by Labor. It has been held by a member of a non-Labor party for all but six years of its existence, when held by "father of the independents" Ted Mack, from the 1990 election before choosing to resign from federal parliament after two terms at the 1996 election, for the same reason he previously chose to resign from state parliament after two terms − to avoid receiving a parliamentary pension.[2]

However, during Mack's tenure, North Sydney was always a safe Liberal seat in traditional two-party matchups, and it was a foregone conclusion that it would revert to the Liberals once Mack retired. As expected, when Mack retired in 1996, Joe Hockey reclaimed the seat for the Liberals on a swing large enough to revert the seat to its traditional status as a comfortably safe Liberal seat. Hockey held it easily until 2015, serving as Treasurer from 2013 to 2015 in the Abbott Government. After Abbott was ousted as Liberal leader and Prime Minister by Malcolm Turnbull in the September 2015 Liberal leadership spill Hockey moved to the backbench, however six days later he announced his intention to resign from parliament, taking effect from 23 October. The 2015 North Sydney by-election occurred on 5 December to elect his replacement, Trent Zimmerman, a former Hockey staffer, despite a large swing.[3][4]

Zimmerman won with 48.2 percent of the primary vote after a larger-than-predicted 12.8 percent swing against the Turnbull Coalition Government. This was only the second time in North Sydney since federation that the successful Liberal candidate did not obtain a majority of the primary vote and had to rely on preferences. Zimmerman faced a double-digit primary vote swing − more than triple that of the 2015 Canning by-election − even though Labor did not even contest the seat.[1]

The Liberal two-candidate vote of 60.2 percent against independent Stephen Ruff compares to the previous election vote of 65.9 percent against Labor.[1] The reduction of 5.7 percent cannot be considered a "two-party/candidate preferred swing" − when a major party is absent, preference flows to both major parties does not take place, resulting in asymmetric preference flows.[5][6]

Zimmerman became the first openly LGBTI member of the House of Representatives.[3][7]

Besides Mack and Hockey, other notable members from this seat include Dugald Thomson, a minister in the Reid Government, and Billy Hughes, the longest-serving parliamentarian in Australian history and a minister in the Lyons, Menzies and Fadden governments.



Member Party Term
  Dugald Thomson Free Trade, Anti-Socialist 1901–1909
  Commonwealth Liberal 1909–1910
  George Edwards Commonwealth Liberal 1910–1911
  (Sir) Granville Ryrie Commonwealth Liberal 1911–1917
  Nationalist 1917–1922
  Billy Hughes Nationalist 1922–1929
  Independent Nationalist 1929
  Australian 1929–1931
  United Australia 1931–1944
  Independent 1944–1945
  Liberal 1945–1949
  William Jack Liberal 1949–1966
  Bill Graham Liberal 1966–1980
  John Spender Liberal 1980–1990
  Ted Mack Independent 1990–1996
  Joe Hockey Liberal 1996–2015
  Trent Zimmerman Liberal 2015–present

Election resultsEdit

2019 Australian federal election: North Sydney[8]
Party Candidate Votes % ±
Liberal Trent Zimmerman 40,770 51.71 +0.22
Labor Brett Stone 20,121 25.52 +8.72
Greens Daniel Keogh 10,563 13.40 +0.38
Independent Arthur Chesterfield-Evans 3,627 4.60 +4.60
Sustainable Australia Greg Graham 1,419 1.80 +1.80
Christian Democrats David Vernon 1,311 1.66 −0.39
United Australia Peter John Vagg 1,033 1.31 +1.31
Total formal votes 78,844 96.30 +1.06
Informal votes 3,032 3.70 −1.06
Turnout 81,876 74.92 −15.79
Two-candidate-preferred result
Liberal Trent Zimmerman 46,477 58.95 −4.66
Labor Brett Stone 32,367 41.05 +4.66

Results are not final. Last updated 7:30pm AEST on 20 May 2019.


  1. ^ a b c 2015 North Sydney by-election: Antony Green ABC
  2. ^ Independents' 'father' says trio will choose ALP: ABC AM 6 September 2010
  3. ^ a b Gartrell, Adam (5 December 2015). "Liberal Trent Zimmerman wins North Sydney byelection despite swing". Sydney Morning Herald. Retrieved 6 December 2015.
  4. ^ Osborne, Paul (26 October 2015). "Zimmerman wins North Sydney preselection". Yahoo 7 News. Retrieved 28 October 2015.
  5. ^ "A Comment on the Size of the Port Adelaide Swing, Antony Green". 13 February 2012. Retrieved 26 July 2012.
  6. ^ An Example of Non-Monotonicity and Opportunites [sic] for Tactical Voting at an Australian Election: Antony Green ABC 4 May 2011
  7. ^ When an election’s not a battle but a limp formality: Daily Telegraph 26 November 2015
  8. ^ North Sydney, NSW, Tally Room 2019, Australian Electoral Commission.

External linksEdit