The federal electorate of Canning, which includes Mandurah, Pinjarra, Dwellingup and the Peel region has voted in favour of same-sex marriage.
Of the 80,505 electors who returned a postal vote 60.2 per cent (or 48,486 people) voted yes and 39.8 per cent (or 32,019 people) voted no.
In Western Australia 801,575 people – or 63.7 per cent of electors – voted yes.
Overall, 61.6 per cent of Australians who returned a ballot voted in favour of a change in the law to allow same-sex marriage.
There were 4.9 million Australians (or 38.4 per cent) who voted no.
Almost 80 per cent of the 16 million Australian eligible to cast a vote returned a survey form.
Prime Minister Malcolm Turnbull said on Wednesday morning he wants legislation enacting the outcome of the survey, which he described as “unequivocal and overwhelming”, passed through parliament by Christmas.
“My commitment was to give every Australian their say – that has been done,” he said.
“They have said yes...It is our job to do that.”