South Australia has reported four more coronavirus-related deaths along with 1624 new infections.
SA Health said two women in their 80s, a man his 60s and another man in his 80s who had all tested positive for COVID-19 had passed away.
The deaths take the SA toll since the start of the pandemic to 162.
There are 227 people in hospital with coronavirus including 19 people in intensive care, where five people are on a ventilator.
Active infections across the state stand at 13,822.
Also on Wednesday, opposition frontbencher Tom Koutsantonis confirmed he had contracted the virus.
Mr Koutsantonis said he tested positive on Tuesday and was isolating at home with his family.
He said he would continue to work from home.