There were 7.2 million households in Australia at June 1999, one in four being single person households. For further information see Australian Demographic Statistics, September Quarter 1999 (Cat. No. 3101.0).
A new working paper on household estimates is now available. It discusses the household estimates presently produced by the ABS and investigates several options for the production of post-censal small area household estimates. See Demography Working Paper 2000/1: Production of Post-Censal Small Area Estimates of Households - A Preliminary Investigation available on the ABS web site at https://www.abs.gov.au and select Themes/Demography/ABS Demography Working Papers.