Clarence Valley Council is a local government area in the Northern Rivers region of New South Wales, Australia. The council services an area of 10,441 square kilometres (4,031 sq mi) and draws its name from the Clarence River, which flows through most of the council area. The area under management is adjacent to the Pacific Highway, the Gwydir Highway and the North Coast railway line. The Clarence Valley region includes the coastal plain and lower valleys of the Clarence and Nymboida river. Most of the valley is agricultural; however, the oceanside towns of Yamba and Iluka are popular holiday resorts.