It's census time Australia!
Everyone from one-second-old newborns to scientists in Australia's Antarctic Division will be accounted for in the 2011 census.
This Tuesday, millions of Australians will be asked more than 60 questions about their profession, religion, income and the make-up of their family in a bid to get an accurate snapshot of the country and our characteristics.
In the 2011 census, same-sex couples who have married overseas will have their unions counted for the first time. People will also have the option to have their records made available to historians in future years and about 30 per cent of respondents are expected to fill out their census online.
This year, the ABS is hoping to avoid a repeat of the 2006 census, in which 55,000 jokesters marked their religion as "Jedi" - a reference to the Star Wars films.