The locality of Hindmarsh has an approximate area of 260 km².
It is surrounded by the suburbs of Bowden, Brompton, Burrungule, Croydon, German Flat, Glencoe, Koorine, Mount Burr, North Adelaide, Ridleyton, Rocky Camp, Thebarton, Torrensville and West Hindmarsh.
It is surrounded by the localities of Adelaide, Benara, Blanche, Grey, Kalangadoo, Mayurra, Millicent, Mount Mcintyre, Mount Muirhead, Riddoch, Tantanoola, Yatala and Young.
It is within the council of Wattle Range.
It is within the state electorate of Mackillop.
It is within the federal electorate of Barker.