Population of Australia

Australia's population is estimated at 28,292,144 for 2026, based on recent projections from official 2024 data. The country holds the global rank of 54 out of 215 nations and is the most populous country in Oceania. While the nation covers a vast land area, it is characterized by extremely low population density and high urbanization, with growth currently driven by a combination of natural increase and significant net migration.

Historically, Australia's demographic profile changed rapidly following the arrival of the First Fleet in 1788 and subsequent colonial expansion. The discovery of gold in the mid-19th century triggered a massive influx of migrants from Europe and China, significantly boosting the population while simultaneously causing a devastating decline in the Aboriginal and Torres Strait Islander population due to disease and conflict. By the early 20th century, the federation of the colonies led to more formalized immigration controls that shaped the nation's demographic makeup for decades. Following World War II, the government adopted a "populate or perish" policy to increase the national workforce and defense capabilities. This era saw millions of displaced persons and migrants arriving from across Europe, followed later by significant shifts in policy that opened migration to Asia and the Middle East. These changes transformed the nation into one of the most multicultural societies in the world, with a population that has more than doubled since the 1960s.

Current estimates show a robust annual growth rate of approximately 1.99%, a figure that remains high compared to many other developed nations. While the natural increase remains positive with 10.7 births per 1,000 people against 6.884 deaths, the primary driver of recent population expansion has been net overseas migration. This migration influx accounts for a substantial portion of the yearly increase and is essential for addressing labor market needs in a growing economy. The fertility rate has declined to approximately 1.48 births per woman, which is well below the replacement level of 2.1. This trend, coupled with a high life expectancy of approximately 83 years, indicates a long-term shift toward an aging population structure. Future projections suggest that the population will continue to grow, though the pace will be heavily influenced by government immigration targets and global economic conditions.

With an estimated density of 3.7 people per km² (9.6 per sq mi), Australia is the most sparsely populated country in Oceania and ranks 213th globally for density.

Approximately 87.6% of the population resides in urban areas, reflecting a highly centralized society where the vast majority of people live in major coastal cities.

Australia holds the top population rank in both Oceania and the Australia and New Zealand subregion, being the largest demographic force in its part of the world. Globally, it ranks 54th, placing it ahead of regional neighbors such as New Zealand and Papua New Guinea. Despite its high population count for the region, its population density rank of 213th highlights its unique status as one of the most sparsely populated nations on Earth relative to its total land area.