Sefton, a suburb of the Canterbury-Bankstown Council.    Located 23 kilometres west of the Sydney central business district. Sefton shares the postcode of 2162 with the neighbouring suburb of Chester Hill.

James Wood gave the name 'Sefton Park' to the 340 acres (1.4 km2) of land granted to him in 1839. Prior to subdivision, Sefton was an area of market gardens, orchards and poultry farms. It was the birthplace of property group Stockland in 1952, when founder Ervin Graf undertook a development project of 19 houses in the suburb.

There is a small shopping centre clustered around the railway station including Sefton Growers Market, Sefton Newsagency and a Thai/Australian bistro adjacent to the newsagency.

Sefton Infants School is a small public school catering for years Kindergarten to Year 2 and also includes a pre-school. Sefton High School is a co-educational, partially selective, high school with just over 1000 students. Sefton's selective-school section operates from years 7-10 and years 11-12 are integrated into the community section of the school. Immaculate Heart of Mary Catholic School is a co-educational primary school catering from Kindergarten to Year 6 and is adjacent to the Immaculate Heart of Mary Church.

A number of sporting facilities are located around Sefton. This includes Jensen Oval and Sefton Golf Course. Sefton Golf Course  is a council-owned 18-hole par-3 course on 15.6 hectares and is open all year round.