Northfield is a suburb of the greater Adelaide, South Australia area. The earliest known record of the name being used in reference to the area, is from the 1890s in conjunction with the North Field Athletics Club. Yatala Labour Prison is located in Northfield.LandmarksHampstead rehabilitation centre, part of the Royal Adelaide Hospital.Landing ground of Sir Ross & Keith Smith's Vickers Vimy. 23 March 1920Ross Smith Secondary School (formerly Northfield High School) - Closed in 2011Stockade botanic park Yatala Labour Prison, built in 1854.Northfield Primary School, established in 1861.Duncan Fraser Reserve, home of the Gepps Cross Football ClubLJ Lewis Reserve, home of the Greenacres Football ClubGovernmentNorthfield is in the City of Port Adelaide Enfield local government area, and is in both the South Australian House of Assembly electoral districts of Playford and Torrens. It is also in both the Australian House of Representatives Divisions of Adelaide and Sturt.