Full Breakdown
Revised Estimates Reveal Demographic Catastrophe of Australian Colonisation
By Drooid · · How we work
Revised Population Estimates and Scale of Decline
A team of Australian researchers published a peer-reviewed paper in *Nature Human Behaviour* that recalculates the Indigenous population before the 1788 arrival of the First Fleet at a median of 2.22 million. Earlier figures ranged from 250 000 to 1 million. Comparing this baseline with early colonial census data, the authors estimate 2.06 million excess deaths between 1788 and 1861, leaving about 7 percent of the original population alive by the early 1860s.
Historical Context and Methodology
The study was led by associate professor Alan Williams (James Cook University) with co-authors Corey Bradshaw, Larissa Behrendt, and Lynette Russell. Researchers combined five independent approaches—archaeological radiocarbon records, two climate-productivity models, two genetic reconstructions, and computer-based demographic modelling—to overcome gaps in historic records.
Quantitative Findings
- Pre-colonial median population: 2.22 million (? 1 person per 3 km²).
- Estimated excess deaths (1788-1861): 2.06 million, a 93 percent loss.
- Population in 1861: roughly 180 000 (? 7 percent of the original).
- 2021 Census count: 812 728, revised to 983 257 after recounts, ? 37 percent of the pre-colonial estimate.
The researchers attribute the mortality surge to introduced diseases, frontier violence, dispossession, malnutrition, and broader structural violence such as assimilationist policies. Bradshaw notes that a 1789 smallpox outbreak may have killed up to 220 000 people on the east coast within ten years.
Official Perspectives
She stresses that accurate pre-colonial numbers are “invaluable to truth-telling and reconciliation.”
Corey Bradshaw characterises the loss as “disastrous” and argues that recorded massacres likely represent only a fraction of the actual violence.
Lynette Russell links the scale of loss to ongoing intergenerational trauma and calls for policy that addresses both trauma and persistent privilege.
Alan Williams frames the research as highlighting the “major impacts of invasion” and the “remarkable survival, resilience and recovery” of Indigenous cultures.
Verbatim Quotes
- “Removing 93 per cent of the (Indigenous) population in 70 years, it can't be interpreted in any other way but disastrous,” — Professor Bradshaw
- “Since the white man first began to occupy the Australian continent, the aborigines have very rapidly decreased in numbers,” — Alfred Radcliffe-Brown
Conflicting Estimates and Uncertainties
The median excess-death figure is 2.06 million, but the authors note a possible range from 700 000 to 4.2 million deaths, reflecting variations among the five modelling approaches and limited archaeological and genetic data.
Future Projections
If current growth trends continue, Indigenous Australians could reach parity with the estimated pre-colonial population around 2047. The authors argue that acknowledging the scale of historic loss is essential for shaping reconciliation policies and supporting the cultural resurgence of First Nations languages.