Western Australia State Boundary from Geoscape Administrative Data

November 2019 data release includes boundaries referencing both the GDA94 and newer GDA2020 geodetic datums. This dataset provides the official state boundary for Western Australia, derived from authoritative state cadastre data and maintained by Geoscape Australia. It is part of a larger collection of seven administrative boundary themes released under an open license by the Australian Government.

Use Cases

• Map the WA state jurisdiction using the provided polygon geometry for regional planning.
• Join other Australian datasets using the state boundary as a spatial filter for analysis.
• Compare boundary representations between the GDA94 and GDA2020 datum versions for coordinate reference system migration.

Strengths

• Derived from authoritative state and territory cadastre data.
• Offered in multiple geospatial formats (SHP, GEOJSON, WFS).
• Provides coordinate data in two standard geodetic datums (GDA94 and GDA2020).

Limitations

• Specific row/feature count and file size are not provided.
• The core boundary data is from a November 2019 release, which may not reflect minor subsequent changes.

Provenance

Source

Geoscape Australia, using authoritative government data from state jurisdictions.

Collection Method

Derived from cadastre data from each state and territory jurisdiction.

Time Range

Snapshot as of November 2019.

Freshness

Last platform update was 2026-04-04, but the underlying data release is from November 2019.

Geography

State of Western Australia, Australia.