The Kimberley holds 80 per cent of the Western Australia's divertible, fresh, surface water resources.

Water supplies for Broome, Derby, Fitzroy Crossing, Halls Creek and Kununurra are sourced from bore-fields near the towns. Wyndham is supplied from the Moochalabra Dam. All water supplies to the regional towns are operated by the State's Water Corporation.

The storage volume of the main Ord River Dam, Lake Argyle, is 10,763 million cubic metres of water. This equates to a surface area of 980 square kilometres, and serves the Ord River Irrigation Area through an open irrigation scheme which is owned by the Water Corporation and managed by the Ord Irrigation Cooperative.

Source: Kimberley Economic Perspective