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The size and age/sex structure of Australia's future population will influence the number of future households, families and people in different living arrangements. Previous sections of this publication apply three different assumptions about living arrangements to the series B projection from Population Projections, Australia, 2017 (base) to 2066 (cat. no. 3222.0). This chapter looks at the impact of instead using the series A (higher) or series C (lower) population projections as the future population of Australia.
Household projections Using the series B projection as the future population of Australia results in a projection of between 12.6 and 13.2 million households in Australia in 2041. This is an increase of between 3.4 and 4.0 million households. If instead the series A projection was used as the future population, the number of households is projected to be 4% higher than using series B, increasing by between 3.9 and 4.6 million households to reach between 13.1 and 13.8 million households in 2041. If the series C projection were used, the number is projected to be 3% lower than using series B, increasing by between 3.0 and 3.6 million households to reach between 12.2 and 12.8 million households. Footnote(s): (a) Uses series I household projection assumptions and series A population projection assumptions. (b) Uses series II household projection assumptions and series B population projection assumptions. (c) Uses series III household projection assumptions and series C population projection assumptions. Source(s): Household and Family Projections, Australia, 2016 to 2041 The use of different population projection series (A, B or C) has relatively little impact on the proportion of households in each household type. For example, family households are projected to make up 70% of all households for series II regardless of which population is used. The impact of the population projection series is mainly on the number of each type of household, rather than on the proportion relative to the population.
Family projections Using the series B projection as the future population, the number of families in Australia is projected to reach between 9.2 and 9.4 million in 2041. If the series A population is used instead of series B, higher numbers of families are projected (between 9.5 and 9.8 million in 2041), while if series C is used, fewer families are projected (between 8.9 and 9.1 million). Footnote(s): (a) Uses series I household projection assumptions and series A population projection assumptions. (b) Uses series II household projection assumptions and series B population projection assumptions. (c) Uses series III household projection assumptions and series C population projection assumptions. Source(s): Household and Family Projections, Australia, 2016 to 2041 As with household projections, the use of different population projection series (A, B or C) has relatively little impact on the proportion of families in each family type. For example, couple families with children is projected to make up 43% of all families for series II regardless of which population is used. The impact of the population projection series is mainly on the number of each type of family, rather than on the proportion relative to the population.
Living arrangement projections The different age structures of series A, B and C result in differences in the proportion of the projected population in each type of living arrangement.
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