Sellicks Beach is an outer southern suburb of Adelaide, South Australia which is located in the local government area of the City of Onkaparinga and is the southernmost extent of the Adelaide metropolitan area. At the 2006 census, Sellicks Beach had a population of 2,339.

There are housing development projects being undertaken in Sellicks Beach.[citation needed] There is a post office, delicatessen and a wholesale nursery. Sellicks Beach is also close to Aldinga Beach, a 10-minute drive, which has two petrol stations, two supermarkets, bakery, doctors surgery, two chemists and other various shops. Driving on the beach is permitted free of charge for residents while a non-residents are charged a small fee.

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