This dataset defines the eligibility of areas in Australia for the Urban Rivers and Catchments Program. The dataset is a 500m buffer around the ABS SUAs.

The Significant Urban Areas (SUA) represent significant towns and cities of 10,000 people or more. They are based on Urban Centres and Localities (UCLs) but are defined by the larger Statistical Areas Level 2 (SA2s). A single SUA can represent either a single Urban Centre or a cluster of related Urban Centres. Using SA2s to define SUAs ensures a wider range of more regularly updated data is available for these areas (such as Estimated Resident Population), compared to UCLs where only Census data is available.