Mayfield is a rural locality in the Mid North region of South Australia.

It is situated in the Northern Areas Council.

[4] It occupies roughly the north-eastern quarter of the cadastral Hundred of Reynolds.

[3] The locality is entirely rural in nature, and a series of rough dirt roads are the only means of vehicle access through the area.

[5] The historic Coolootoo Shepherd's Hut, a remnant of the significant Old Canowie Station, is located on the boundary between Mayfield and its northern neighbour Belalie East, and is listed on the South Australian Heritage Register.