Most Australians will complete their Census online, but the Australian Bureau of Statistics is reminding everyone to look out for instructions about the national survey in the mail. Census spokesperson Emily Walker said guides on how to participate in the Census will be mailed to Australian households and land in letterboxes over the coming weeks. “Once you receive your instructions, you can complete your Census straight away if you already know where you’ll be on Census night. You don’t need to wait until August 11,” Walker said.