Cederberg Municipality is a local municipality which governs an area of the Western Cape province of South Africa stretching from the Cederberg mountains through the middle valley of the Olifants River to the Atlantic coast. It includes the towns of Clanwilliam, Citrusdal and Lamberts Bay, and the surrounding villages and farms. As of 2011 it had a population of 49,768. It is located within the West Coast District Municipality and its municipality code is WC012.