Suburb and LGA Percentage Area Mapping for New South Wales

Spatial Services (DCS) provides a dataset listing suburbs/localities and the Local Government Areas (LGAs) they fall within, including a percentage attribute for the area of the locality within each LGA. The data is sourced from the Geographical Names Board and the Local Government Act 1993 processes in New South Wales, Australia. It was initially published on 05/05/2023 and has a data currency date of 19/02/2026.

Use Cases

• Calculate demographic statistics for LGAs based on the percentage area of constituent suburbs.
• Map the overlap between suburb and LGA boundaries for jurisdictional analysis.
• Validate or correct address data by cross-referencing suburb and LGA relationships.
• Allocate resources or funding proportionally based on the area of a suburb within an LGA.

Strengths

• Explicitly documents the non-coincident nature of suburb and LGA boundaries, a key data caveat.
• Provides a percentage attribute to quantify the area overlap between localities and LGAs.
• Data is provided by the authoritative custodians, DCS Spatial Services and the Geographical Names Board.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

DCS Spatial Services and the Geographical Names Board (GNB) of New South Wales, Australia.

Collection Method

Assigned under the Local Government Act 1993 (LGAs) and the Geographical Names Act (suburbs/localities).

Freshness

Data Update Frequency is listed as 'Other'; last platform update was 2026-05-17.

Geography

New South Wales, Australia.