Click on Declared Special Water Supply Catchment Areas links (below) to access regional pages containing localised details and high resolution maps.

| Regional maps of Declared Special Water Supply Catchment Areas | |
| North Central | Port Phillip & Westernport |
| Goulburn Broken | Corangamite |
| North East | Glenelg Hopkins |
| East Gippsland | Wimmera |
| West Gippsland | |