Sefton lies approximately 23 kilometres west of the Sydney central business district, straddling the local government areas of the City of Canterbury‑Bankstown and Cumberland City Council.
The suburb recorded a population of 6,300 at the 2021 census, marking an 8.5 per cent growth since 2016, with a notably youthful demographic dominated by the 10– 19 age group.
Households tend to be family-based, with around 62 per cent owner‑occupiers and typical mortgage repayments between $1,800 and $2,399 monthly. Residents speak a variety of languages, reflecting the multicultural nature of Western Sydney; English shares space with community languages, as indicated in local demographic profiles.
Census data show that 5.6 per cent of residents travel to work using public transport, around 47 per cent commute by car and nearly 28 per cent work from home.
Sefton railway station is located approximately 21 kilometres from Central, along the Main Southern line, and is served by T3 Liverpool & Inner West services, recording approximately 884 daily passengers in 2023. The station connects to local bus routes and the N50 NightRide, supporting commuter flows across Western Sydney. Local bus networks link Sefton with nearby centres such as Parramatta, Chester Hill and Auburn, supplementing rail access.
Essential amenities in Sefton include small shopping strips, cafés, childcare services, and Sefton High School, a partially selective government school serving approximately 1,100 students. Residents have access to major supermarkets, medical clinics, and banking services in nearby Chester Hill, Granville, and Parramatta.
Sefton offers a range of green spaces across approximately 1.8 square kilometres, with six parks comprising around 12.7 per cent of the land area.
Local recreational options include street parks, playgrounds, and connections to the Botany Creek cycleways, which link to broader Western Sydney networks. Cycling and walking infrastructure support active travel, although most residents rely on private vehicles for their daily travel.
Educational needs are met through local primary schools and Sefton High School, while secondary and tertiary options lie in Auburn and Parramatta.
Healthcare is available via nearby medical centres, while major hospitals at Westmead and Auburn remain accessible by car or public transport.
Sefton maintains a community atmosphere rooted in family life, youth presence and multiculturalism, underpinned by good transport links, established schools and accessible green spaces.