The District Council of Ridley was a local government area in South Australia from 1976 to 1991.
[1] It included the whole of the cadastral Hundreds of Bagot, Fisher, Angas, Ridley, Nildottie and Forster, and parts of the Hundreds of Jellicoe and Bowhill.
[2] In 1986, it covered an area district of 2300 square kilometres, described as "bounded by Keyneton, Swan Reach, Bowhill and Sanderston".
The major service centres were Cambrai, Sedan and Swan Reach, with smaller townships at Black Hill, Bowhill, Keyneton, Nildottie and Purnong.
The main primary industries in the largely agricultural district were wheat and barley growing and sheep grazing, with irrigated crops along the Murray River, and tourism along the river being of increasing importance.