Magnetic Island is an island offshore from the city of Townsville, Queensland, Australia. This mountainous island in Cleveland Bay has effectively become a suburb of Townsville, with 2,107 permanent residents. The island is accessible from Townsville Breakwater to Nelly Bay Harbour by ferry. There is a large National Park and bird sanctuary and walking tracks can be taken between the populated bays and to a number of tourist destinations such as the World War II forts.
The island has long become established as a holiday destination with many hotels and several resorts in operation to cater for all levels of service. The public facilities and infrastructure on the island are managed by the Townsville City Council. The island is part of the electoral district of Townsville in the Legislative Assembly of Queensland. The island is also part of the Federal seat of Herbert, which is represented by Ewen Jones.