It is 7.5 kilometres south-west of the Sydney central business district, in the local government area of Inner West Council.

[3] The area became part of Sydney's expanding tram network in 1889 and, like many suburbs in the inner-west, experienced rapid growth in the early twentieth century.

[4] Situated in the same street is the former location of the Dulwich Hill Library, a converted cottage in the Victorian Gothic style.

[5] Notable graduates of the high school include former Parramatta rugby league coach Terry Fearnley, tennis player Phil Dent and opera singer Yvonne Minton, while former rugby league referee Jack Danzey taught there.

[6] Until the late 1950s, when the local tramway system was closed, electric trams ran to Dulwich Hill and the Cooks River from Circular Quay.

[9] Modern public transport to the area comprises one railway station, four light rail stops and several bus routes.

[10] The Inner West Light Rail starts at Dulwich Hill railway station and includes three other stations in the suburb: Dulwich Grove (between New Canterbury Road and Hercules Street), Arlington (adjacent to Johnson Park near Constitution Road) and Waratah Mills (near Davis Street).

Light rail services continue to the Sydney CBD, though via a more indirect route than the Bankstown railway line.

The 418 between Bondi Junction and Burwood via Ashfield follows the same route as 426 between Marrickville and Dulwich Hill shops, before swinging on to New Canterbury Road, and then south to Hurlstone Park Station.

[16] The section of Dulwich Hill south of the railway line is in the federal electoral division of Barton held by Linda Burney, of the Australian Labor Party (ALP), the first Aboriginal woman elected to the House of Reprentatives.

A number of residential subdivisions in Dulwich Hill occurred in the early 20th century, and include well preserved Federation and Interwar era houses.

The area is served by several religious organisations, including Anglican, Catholic, Greek Orthodox and Salvation Army churches.