The zone is bounded at the west by the Horrocks Highway from near Templers to Gawler in the south while its southern boundary includes the South Para River and runs in an easterly direction including Williamstown but excluding Mount Pleasant then turning north just west of Sanderston.

The northern boundary includes Truro and turns north to follow the Light River excluding Kapunda and then through Freeling, South Australia.

[2] The term ‘Barossa’ was registered as an AGI under the Wine Australia Corporation Act 1980 on 27 December 1996.

[1] The zone boundary is based on the lands administrative divisions of South Australia, and consists of the whole of the hundreds of Belvidere, Nuriootpa, Moorooroo, Jellicoe, Barossa, Jutland, plus a small part of the hundred of Para Wirra where it extends between Williamstown and Springton.

[2][3] The term ‘Barossa Valley’ was registered as an AGI on 15 August 1997 and as of 2012, it is represented by 37 wineries.