Greens Senators Scott Ludlam, Sarah Hanson-Young, Lee Rhiannon, Janet Young and Larissa Waters, South Australia's Nick Xenophon, who heads his own party, and Tasmanian Jacqui Lambie have all decided to withhold this information, saying they are not convinced the census does not present a security risk.
Their decision comes in the wake of a former deputy privacy commissioner of NSW, Anna Johnston, saying she would be boycotting the census, due to privacy issues.
Johnston explained the reasoning behind her decision in an op-ed written for Fairfax Media; in short, her reason was: "Yes, to a national snapshot. No to detailed data-linking on individuals. That's not what a census is for."
While the country was under the impression that the 2016 census would be the first time that names and addresses were retained, the ABS head David Kalisch confessed some weeks back that the bureau had been lying all this time and names and addresses had been retained for 18 months since the 2006 census and linked to people's personal data.
The Greens had earlier asked that fines be waived for people who do not wish to provide their names and addresses for the census.
Ludlam said on August 4: "The ABS response to privacy concerns has been wholly inadequate, and if they refuse to push census day back, they need to guarantee they will not fine people who choose to protect their own privacy."
In the face of numerous leaks of data from companies and organisations all over the globe, the latest being the leaks from the US Democrat National Committee, the ABS has been stoic in its claim that it can provide security that will prevent any leaks.