The Lower Murray Darling Catchment covers an area of approximately 6 million hectares. It extends from Broken Hill in the north to the Murray River in the south and from Balranald to the South Australian border in the west.

It includes the entire local government areas of Wentworth and Broken Hill City, the majority of the Balranald Shire Council area, a small area administered by the Central Darling Shire Council and the southern portion of the Unincorporated Area administered by DLWC.

Main towns:

• Balranald (on boundary)
• Broken Hill
• Euston
• Pooncarrie
• Wentworth