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The new ABS Statistical Geography – the ASGS

The new ABS Statistical Geography – the ASGS. ABS has a new geography. The Australian Statistical Geography Standard (ASGS) replaces the former ASGC. CDs, SLAs, SSDs and SDs have been replaced by Statistical Area Level 1s, 2s, 3s and 4s. Also GCCSAs. LGAs are retained.

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The new ABS Statistical Geography – the ASGS

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  1. The new ABS Statistical Geography – the ASGS

  2. ABS has a new geography • The Australian Statistical Geography Standard (ASGS) replaces the former ASGC. • CDs, SLAs, SSDs and SDs have been replaced by Statistical Area Level 1s, 2s, 3s and 4s. Also GCCSAs. LGAs are retained. • Census/Buildings Approvals are already ASGS enabled - other ABS collections transferring by 2013.

  3. What are some of the new regions? • Statistical Area Level 1 (SA1s): 54,804 in number, average population size = 400 people. Reflect suburbs/localities. • SA2s: 2,214, average population = 10,000 (ranging from 3,000-25,000) people. Optimal for household data. • SA3s: 351, with 30,000-130,000 people. • SA4s: 106, with100,000-500,000 people. Optimal for JTW/LF data.

  4. Why change geographies? • Move towards a more functional classification - based on where people come to access services. • Stability and data continuity – no need to review/change regions yearly. • More consistency in population size across regions. • To establish a framework that integrates meta data, spatial boundaries and regional hierarchies.

  5. Median monthly mortgage payments – Tasmania (2011 Census)

  6. SLA – median monthly mortgage payments (2011)

  7. SA2 – median monthly mortgage payments (2011)

  8. Building approvals – new houses - July-Dec 2011 (SLAs) Armadale WA

  9. Building approvals – new houses – July-Dec 2011(SA2s) Armadale WA

  10. Optimising your use of ASGS data • select “Statistical Geography” on the ABS website and explore further. • don’t be misled by similar sounding names across ASGC/ASGS regions - they may not necessarily be the same. • compare the ASGC/ASGS maps to see where the boundary changes have really occurred.

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