Background The Indigenous population of Australia has grown very rapidly since the first tabulation of census statistics about Indigenous people in the 1971 ABS Census of Population and Housing (Census). Understanding the size and location of the Indigenous Australians is important to the State for service delivery and policy, and for Indigenous peoples themselves. Aims This paper summarises changes to population geography of Indigenous Australians between 2011 and 2016. It describes the growth in the estimated population, and its changing geographic distribution. The paper derives a measure of ‘unexpected population change’: the spatial mismatch between demographic projections from the 2011 and 2016 Census counts. Data and methods Cen...