Both Premier Steven Marshall and Opposition Leader Peter Malinauskas say they’re confident of a win as voters cast their ballots.
More than xjmtzywone million people joined the two men at polling booths across the state to have their say.
Ahead of polls closing on Saturday, Mr Malinauskas was tipped as the favourite to become the next South Australian premier.
In the final Newspoll ahead of the election, Labor led the government 54-46 on a two-party preferred basis.
Speaking to reporters, Mr Malinauskas downplayed his chances.
“This election will be close. It is unwise for politicians to try and presume results or predict results. That is a mug’s game,” he told reporters.
“I am confident I have done all the work and my team has done all the work that we can to put ourselves in a position to offer a credible alternative for the future of our state.”
Mr Marshall, who voted midmorning in his eastern suburbs seat of Dunstan, said he wasn’t concerned about opinion polls or his apparent underdog status.
“There’s a little bit of uncertainty in the world at the moment, some people have been concerned about the coronavirus pandemic, and we see polls moving around all the time,” he said.
“I’m quite confident that when people get into that booth today, they will be voting for what’s in their best interest – a continuing Liberal government in South Australia.”
There were long lines at polling booths during the morning as social distancing measures limited how many people could vote at once.
More than 300,000 people cast an early ballot or applied for a postal vote.
These votes could become crucial to the outcome but will not be counted on election night.