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THE AUSTRALIAN STATISTICAL GEOGRAPHY STANDARD AND POPULATION ESTIMATES
Population Estimates Under the ASGS
From 2011 onwards, the SA2 will be the base spatial unit used to prepare and disseminate sub-state population estimates.
The first set of population estimates under the ASGS (as at 30 June 2011) will be released in July/August 2012 in Regional Population Growth, Australia (cat. no. 3218.0). This release will also contain estimates based on the old geography. However, 30 June 2011 estimates will be the last time SLA based data will be prepared and released. Sub-state population estimates from 30 June 2012 and onwards will only be prepared and released based on the ASGS (SA2, SA3, SA4 and Capital Cities).
As LGA population estimates are regarded as a crucial ABS output, they will continue to be prepared post 2011. The boundaries on which these estimates will be prepared on will be updated each year, in line with official gazetted boundaries.
SA2 population estimates will be broken down into SA1s, which can then be aggregated to form non-ABS structures (Postal Areas, State Suburbs, State Electoral Divisions, Remoteness Areas etc) which make up part of the ASGS.
Sub-state population estimates by age and sex will also continue to be prepared and released under the new geography. Estimates will be prepared at the SA2 level by single year of age and sex, but will be released on the web site in five-year age groups, in Population by Age and Sex, Regions of Australia (cat. no. 3235.0).
The change in geographic classification means there will be an unavoidable break in time series. To assist users with this break in time series, the ABS plans to prepare historical population estimates under the new geography. How long this time series is depends on the geographic level or the type of estimate. For larger areas (e.g. Capital Cities) the ABS is aiming to prepare longer time series. Time series will be released as part of the first releases of ASGS population estimates in July/August 2012.
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