Just over 77 per cent of voters took to the ballot boxes this weekend - a small increase in turnout from the last election.
More than 2.4 million people voted in this year's election, representing a 77.04 per cent turnout, preliminary figures from the Electoral Commission show. This includes special votes, which make up 12.2 per cent of the total votes cast.
This year's turnout is up from the 2011 election, when turnout of enrolled voters was an historically low 74.21 per cent.
It was a "decent improvement", political scientist Bryce Edwards said, but with 2011 being the lowest turnout in 100 years it "could only go up from there".
"It would be astonishing if the turnout hadn't gone up," he said. "This has been the most colourful, engaging and loud campaign that we've seen in living memory.