For the first time, Australia's same-sex couples who describe themselves as "married" have been recorded in census data.
There are 33,714 same-sex couples in Australia — 1338 of which reported their relationship as that of husband and wife. In 2011, 96 per cent of same-sex couples reported their relationship as being de facto.
Gay couples snub 'married' status
The 2011 census allowed gay couples for the first time to list themselves as 'married', but the new figures show most still ticked the 'de facto' box.
There are more male same-sex couples (17,583) than female (16,131). There were 675 men who reported their relationship as married and 661 women who also reported being married.
The 2011 census allowed same-sex couples for the first time to identify themselves as "married".
Previously all same-sex couples were classified as de facto partners in census reports, regardless of how they had described themselves when filling out the census form.
There are 12,731 same-sex couples in New South Wales, 8722 in Victoria, 5986 in Queensland and 2576 in Western Australia. The Northern Territory has the fewest, with 288.
There are 1.48 million opposite-sex couples in NSW, 1.16 million in Victoria, 938,314 in Queensland and 487,189 in WA.
There has been a small increase in the number of childless couples since the last census, while the number of families with children has dropped slightly.
Of the families in Australia in 2011, 44.6 per cent were couple families with children, down less than 1 per cent on 2006; and 37.8 per cent were couple families without children, up less than 1 per cent on five years ago.
There was also a small increase in the number of one-parent families - up from 15.8 per cent in 2006 to 15.9 per cent last year.
The census revealed that the local government area of East Pilbara in Western Australia experienced the largest proportionate growth of 82.6 per cent, from 6546 five years ago to 11,950 in 2011.
The local government area with the biggest increase in the number of people was Brisbane, up from 956,130 in 2006 to 1,041,842 in 2011, an increase of 9 per cent.
Of the states and territories, Western Australia experienced the biggest proportionate increase in its population at 14.3 per cent, from 1,959,086 in 2006 to 2,239,169 in 2011.
Tasmania had the lowest proportionate increase at 4 per cent from 476,482 in 2006 to 495,352 in 2011.