Administrative Boundaries

Administrative Boundaries define the spatial extent of legislative jurisdictions and regulatory, electoral, statistical and maritime geographic areas.

Theme Purpose

The Administrative Boundaries theme is used to visualise administrative areas that represent voting districts, redistributions, zoning, socio-economic analysis, regional planning, service distribution and local and state government boundaries. In addition, Administrative Boundaries can be used to aggregate information for analytical purposes and geographically stable boundaries (over time) can be used to establish and analyse time series trends. Administrative boundary data in combination with geo-coded address data, demographic information and government agency specific business information underpins the ability to perform high quality spatial analysis. The aggregation and analysis of data includes: evidence-based development and assessment of government policy providing the ability to undertake spatial accounting support for emergency management market catchment analysis, micromarketing and customer analysis and market segmentation


Theme Current Status 
National coverage is aggregated from information provided by the jurisdictions and other data custodians which PSMA updates every three months. The PSMA Administrative Boundaries provides the best available national coverage. Jurisdictions currently update their Administrative Boundaries dataset with information from relevant stakeholders and custodians, by data verification from other internal and external databases through defined specification. This update period varies between jurisdictions from daily to “as required”. Jurisdictional data are held at a range of scales, 1:500 to 1:100000, resulting in inconsistent accuracy and capture. The Australian Bureau of Statistics (ABS) maintains the Australian Statistical Geography Standard (ASGS) which replaced the Australian Standard Geographical Classification (ASGC) from July 2011. The Australian Electoral Commission (AEC) maintains each State and Territories Electoral Divisions in preparation for the next electoral event. Geoscience Australia currently maintains an Australian Maritime Boundary database under UNCLOS and the Seas and Submerged Lands Act, 1973.There is currently no single vertical integration of all four administrative datasets, as listed, for the national coverage.
Theme Future Status 
Provide a nationally consistent administrative boundary dataset which supports and delivers administrative boundary information through the vertical and horizontal integration of the listed datasets. This will allow linking of location of these features across all themes. Short Term Objectives: fully aggregate all jurisdictional data into a national dataset which provides a complete, consistent representation of the administrative boundaries establish governance structure between ANZLIC and National Spatial Data Framework supply chain (sponsor, custodian, aggregator and distributor) compliance to relevant ISO 19100 series, Australian and international spatial standards engage Industry on validation of use cases for this dataset Long term Objectives: positional accuracy appropriate to feature; administrative boundaries will be captured to accuracy no worse than 1m in urban and between 2m and 10m in non-urban areas expand with new categories e.g. education, defence, school zone boundaries lower resolution formats delivered via web service boundaries to have temporal stamp

Theme Coverage

Complete, current and continuous coverage of agreed Administrative Boundaries data set for all Australia.