1216.0 - Australian Standard Geographical Classification (ASGC), 2001  
ARCHIVED ISSUE Released at 11:30 AM (CANBERRA TIME) 28/09/2001   
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Contents >> 4. Statistical District Structure >> Purpose and structure


The S Dist Structure maintains a list of selected, significant, predominantly urban areas in Australia which are not located within a Capital City SD (see Chapter 2). S Dists enable comparable statistics to be produced about these selected urban areas. In the main, the structure is used to report intercensal population estimates.

S Dists are maintained as a separate structure from the Main Structure because:

  • the total area of S Dists does not cover the whole of Australia; and
  • some S Dists straddle S/T boundaries (e.g. the Gold Coast-Tweed S Dist lies partly in Queensland and partly in New South Wales).


The S Dist Structure has four levels of hierarchy in census years, comprising in ascending order: CDs-SLAs-SSDs-S Dists. In non-census years, with CDs undefined, it has only three levels of hierarchy (see diagram 3, Chapter 1).

In this structure, CDs, SLAs and SSDs are confined to those which fall within S Dists. The spatial units relate to each other through aggregation or disaggregation. For example, CDs aggregate to SLAs while SLAs are disaggregates of SSDs. The spatial units within each level of the S Dist Structure do not collectively cover the whole of Australia.


The current S Dist Structure, down to SLA level, is shown in the following table in Chapter 13 of this manual:

S Dist Structure
(showing three hierarchical levels: S Dist-SSD-SLA)


S Dist
4400 Kiama (A)
6900 Shellharbour (C)
8450 Wollongong (C)

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