Senate elections are usually held concurrently with House of Representatives elections.

However, Senate-only elections have been held in 1953, 1964, 1967 and 1970. House-only elections have been held in 1929, 1954, 1963, 1966, 1969 and 1972.

Because senators serve six-year terms with half of the senators in each state facing the electorate every three years, each Senate poll is a half-Senate election.

The only exceptions to this have been the double dissolution elections of 1914, 1951, 1974, 1975, 1983 and 1987. In these elections, the Senate was dissolved with all places in each state and territory up for election. To restore the rotation of elections, half of the senators served three-year terms, whilst the other half served six-year terms.

• Federal Election Results 1901-2014 – a Parliamentary Library research paper with detailed statistics on elections since 1901.

Senate Composition

• State of the Parties 1974-2002

Senate Primary Votes

• Senate Primary Votes 1993-98 – a table showing the primary votes polled by the varies parties in the 1993, 1996 and 1998 Senate elections.

Senate Group Voting Tickets

• Use of Senate Group Voting Tickets Since 1984

Senate Election 2016

• Aug 22, 2016: Higher But Fragmented Vote For Minor and Micro Parties
• Aug 21, 2016: The New Senate: The Defeated, Retired, New and Returning
• Aug 20, 2016: The Performance of Pauline Hanson’s One Nation
• Aug 12, 2016: Government, ALP Agree On Senate Terms
• Results & Preference Distributions:
  • NSW – VIC – QLD – WA – SA – TAS – ACT – NT

Senate Election 2013

• Senate Primary Votes 2013 – detailed table showing every group that contested the election with their state-by-state primary votes