Electoral Enrolment
- Enrolment Statistics 1901-98 – Enrolment, Turnout & Informality Statistics
- Enrolment Statistics 1984-98 – State-by-State Statistics
- 2007 Close of Roll Statistics – close of roll enrolment statistics by State/Territory and age groups
- 1996 Federal Election Enrolments
Primary Votes
A primary vote is the “number one” vote cast by an elector in an Australian ballot. It is the best guide to the actual level of support for a political party or candidate, as distinct from the support measured by the two-party-preferred vote.
- House of Representatives 1901-98 – complete set of statistics showing the primary votes received by parties in federal elections since 1901.
- House of Representatives 1993-1998 – a comparison of the primary votes polled by the various parties in the 1993, 1996 and 1998 elections.
- 1996 House & Senate – a comparison of the primary votes achieved by the political parties in each house in the 1996 election.
- Primary Vote Leads Overturned By Preferences – a look at the seats in the last 3 elections in which the candidates leading on primary votes were defeated after the distribution of preferences. – 2001 – 1998 – 1996
Two-Party-Preferred Votes
Preferences & Two-Party-Preferred Votes
The two-party-preferred figure is obtained after all preferences of minor candidates have been distributed to the two remaining candidates, usually Labor and Coalition.
The two-party-preferred statistic is the only valid means of measuring the support of candidates and parties from election to election.
- How Important Are Preferences In Australian Elections?
- How-To-Vote Cards
- Pictures of How-To-Vote Cards
- An explanation of the Two-Party-Preferred Vote
- Two-Party-Preferred Statistics – 1949-2004 – a table of the national two-party statistics in Australian federal elections since Menzies’ second term as PM.
- 1984-1998 State-by-State – a detailed look at two-party statistics in each state in the federal elections of 1984, 1987, 1990, 1993, 1996 and 1998.
- 1998 Two Party Statistics – NSW, Vic, Qld, SA, WA, Tas, ACT, NT
- 1996 Two Party Statistics
- 1993 Two Party Statistics
- 1990 Two Party Statistics
- Exaggerated Majorities – a consequence of preferential voting is the phenomenon of exaggerated majorities, whereby the proportion of seats won by the winning side exceeds the proportion of votes it secured.
- Primary Vote leads overturned after preferences: 2001 or 1998 or 1996
Informal Voting
Informal voting in Australia is a sometimes controversial aspect of the electoral system. Rules differ between the House of Representatives and the Senate, sometimes causing confusion.
House of Representatives
- Informal Voting Statistics 1983-2010 – Tasmania – ACT – NT
- Analysis of 2004 Federal Election Informal Votes – AEC Research Paper (PDF)
- Analysis of 2004 Informal Votes – Seat-by-seat – AEC Research Paper (PDF)
- Categories of Informal Voting 1987 – an interesting set of statistics showing how informal voters spoiled their ballot papers.
Senate







