The Government of South Australia has the South Australia Registry of Births, Deaths and Marriages website for obtaining Birth, Death and Marriage Certificates.
South Australia Birth, Marriage, and Death Records
The site includes separate pages and instructions for births, marriages, deaths, and commemorative certificates.
Online Research Options for South Australia vital records are limited and you can go through the State Records of South Australia (SA Archives) or use a free, searchable index at Genealogy SA.
“State Records holds the following indices to BDM records:
South Australian Births 1842 – 1928
South Australian Deaths 1842 – 1972
South Australian Marriages 1842 – 1937