Enrolment projections - WA federal redistribution

• Enrolment projections overview

Projected enrolment quota

The projected enrolment quota is calculated by dividing the projected number of people enrolled in Western Australia at the projection time by the number of members to which Western Australia is entitled.

Number of Members of the House of Representatives to which Western Australia is entitled	16
Estimated total number of electors enrolled in Western Australia at the projection time (8 February 2017)	1 594 973
Average divisional enrolment at the projection time	99 686
Permissible maximum number of electors in a division (Quota + 3.5%)	103 175
Permissible minimum number of electors in a division (Quota – 3.5%)	96 197

In accordance with section 63A of the Commonwealth Electoral Act 1918, on 1 December 2014 the Electoral Commission determined that the projection time for equality of enrolments for the redistribution of federal electoral boundaries in Western Australia is 8 February 2017.

• Maps are available that depict current and projected enrolment per electoral division

Enrolment projections for Western Australia: by division, SA2 and SA1

Enrolment projections and enrolment as at 1 December 2014 for each division in Western Australia by Statistical Area 2 (SA2) and Statistical Area 1 (SA1). The percentage growth is also indicated.

• WA - SA1 - actual, projected enrolment and growth rate
• WA - SA1 - actual, projected enrolment and growth rate by Division

Appendix 1: Western Australian small area population projections

This report, provided by the Australian Bureau of Statistics, outlines the method used for producing population and enrolment projections for all Statistical Area 1s (SA1s) in Western Australia, spanning from June 2013 to June 2017.

• Appendix 1: Western Australian small area population projections

Appendix 2: Projection methods for the Western Australia, Capital/Rest of State, Statistical Area 2s (SA2s) and Statistical Area 1s (SA1s) – more details

This report, provided by the Australian Bureau of Statistics, gives a more detailed breakdown of the four tiered approach outlined in Appendix 1. The report outlines projection methods for Western Australia, Perth/Rest of Western Australia, Statistical Area 2s (SA2s) and Statistical Area 1s (SA1s).

• Appendix 2: Projection methods for the Western Australia, Capital/Rest of State, Statistical Area 2s (SA2s) and Statistical Area 1s (SA1s) – more details

Appendix 3: Conversion of Australian Bureau of Statistics (ABS) Population Projections to Enrolment Projections

This report, provided by the Australian Bureau of Statistics, outlines the process used to calculate enrolment projections for each Statistical Area Level 1 (SA1).

• Appendix 3: Conversion of Australian Bureau of Statistics (ABS) Population Projections to Enrolment Projections

Differences between federal and state/territory electoral rolls

There is a federal electoral roll and an electoral roll for each state and territory. This is because each jurisdiction in Australia has their own electoral legislation, with electors subject to both federal and state/territory legislative requirements which may differ. It is these legislative differences which cause roll divergence. The causes of roll divergence can be categorised into two types:

• divergence caused by differences in qualifications and disqualifications for enrolment and voting, and
• divergence caused by differences in the process undertaken to enrol and maintain the currency of enrolment details.

Either type of divergence may result in an elector being enrolled for electoral events at one government level but not the other, or enrolled at different addresses for different levels of government.