
Australia's population has changed significantly since 1901, when it stood at around 3.8 million people, not including Indigenous Australians. By 2021, the population had grown to 25.7 million, with a median age of 38.4, up from 22.5 in 1901. The population growth is attributed to numerous waves of immigration, with the European component's share of the population rising sharply in the late 18th and 19th centuries. Australia has an average population density of 3.6 people per square kilometre, making it one of the most sparsely populated countries globally, with most of its population concentrated in urban areas.
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What You'll Learn
- The population of Australia in 1901 was 3,773,801 (excluding Indigenous Australians)
- The median age of the population was 22.5 years
- The rate of natural increase was 14.9 persons per 1,000 population
- % of the population were born overseas
- The population has grown from an estimated 300,000-2,400,000 Indigenous Australians in 1788

The population of Australia in 1901 was 3,773,801 (excluding Indigenous Australians)
The population of Australia has always been a topic of interest, with its demographics and growth playing a significant role in the country's development. As of January 1901, the population of Australia stood at 3,773,801 people. This figure, however, does not include Indigenous Australians, which at the time, was a common and unfortunate practice. The exclusion of Indigenous Australians from population counts was a widespread occurrence in colonial-era census-taking, and it persisted well into the 20th century. This particular population figure for 1901 is significant as it coincides with a pivotal year in Australia's history—the year the six British colonies united to form the Commonwealth of Australia.
This population figure also sheds light on the demographics of the time. The majority of the population, approximately 75%, was concentrated in the eastern colonies of New South Wales and Victoria. These colonies had benefited from the gold rush era of the mid-19th century, which had spurred significant population growth. By contrast, the remaining population was dispersed across the other colonies of Queensland, South Australia, Western Australia, and Tasmania, which had smaller but steadily growing populations.
The makeup of the population was predominantly of British descent, with a significant wave of immigration from the United Kingdom occurring during the 1880s. This influx of immigrants was largely responsible for the near-doubling of Australia's population in the decades preceding 1901. Aside from the British, there were also sizable populations of other European ethnicities, including Germans, Italians, and Scandinavians, who had been attracted to the country for its promising economic opportunities and relatively open lands.
The social and economic landscape of Australia in 1901 was also influenced by this population figure. With a population of just over 3.7 million, the country had a predominantly rural and agricultural character. The majority of Australians lived in rural areas or small towns, with only a small proportion residing in the few sizable cities, such as Sydney and Melbourne. Economically, the country was largely dependent on primary industries, including agriculture, mining, and pastoralism, which employed a significant portion of the population.
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The median age of the population was 22.5 years
The median age of Australia's population was 22.5 years in 1901. This was the median age at the time of Australian Federation, when the rate of natural increase was 14.9 persons per 1,000 population. The population of Australia at this time was 3,773,801, excluding Indigenous Australians. Including Indigenous Australians, the population of Australia in 1901 is estimated to have been between 3,773,802 and 3,800,000.
The median age of a population is a measure of age distribution, calculated by arranging all the people in a population by age and identifying the middle value. A median age of 22.5 years indicates a relatively young population, with a high proportion of individuals under 25 years old. This is reflected in the rate of natural increase, which measures the difference between birth and death rates, and was almost 15 per 1,000 people in 1901.
The median age of a population can provide insights into the demographic structure and social characteristics of a country. In the case of Australia in 1901, the young median age may be indicative of high birth rates, low life expectancy, or both. It also suggests that a significant portion of the population was of working age, which can have economic implications for the country.
Over time, the median age of a population can change due to various factors, including improvements in healthcare, fertility rates, and migration patterns. For example, the median age of the Australian population in 2021 was 38.4 years, indicating a significant ageing of the population over the past century. This increase in median age may be attributed to factors such as increased life expectancy, declining birth rates, and the impact of immigration on age demographics.
The median age of 22.5 years in 1901 provides a snapshot of Australia's demographic characteristics during the early years of Federation. It suggests a youthful population, which may have had social, economic, and cultural implications for the country as it underwent political and social transformations during this period.
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The rate of natural increase was 14.9 persons per 1,000 population
Australia's population stood at 3,773,801 in 1901, the year the nation's six British colonies unified to form the Commonwealth of Australia. This population figure, which includes both indigenous and non-indigenous residents, marked a significant milestone in the country's history, as it was the first census conducted after federation. Delving further into the demographics, males comprised 52% of the population, slightly outnumbering females, who made up the remaining 48%.
Now, regarding the rate of natural increase, it is a crucial demographic indicator that sheds light on the growth and dynamics of a population. It specifically refers to the difference between the birth rate and the death rate in a given population. In the context of Australia in 1901, the rate of natural increase was 14.9 persons per 1,000 population. This rate signifies the number of individuals the population grew per 1,000 people due to natural factors, excluding migration.
To put this into perspective, it implies that for every 1,000 people residing in Australia in 1901, there was a net gain of 14.9 people due to births exceeding deaths. This rate of natural increase suggests a positive population growth rate, indicating that the country was experiencing more births than deaths during that period. A rate of 14.9 persons per 1,000 population translates to a steady growth pattern, showcasing that Australia's population was on an upward trajectory in the early years of the 20th century.
This rate of natural increase is a critical component of understanding a population's dynamics, as it provides insights into the country's overall demographic health and can influence various aspects of societal development. For instance, a positive rate of natural increase may indicate that the population is youthful and reproductive-age adults are a significant portion, which can have implications for social policies, infrastructure planning, and economic growth strategies.
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23% of the population were born overseas
In 1901, the population of Australia was recorded to be 3,773,801. Among this population, a significant portion, constituting about 23%, were individuals who were born outside of Australia. This proportion translates to approximately 867,974 people within the country's population at the time. This percentage provides valuable insight into the demographic composition of Australia over a century ago and highlights the country's historical connection and attraction to the wider world.
The presence of this sizeable proportion of overseas-born residents in the early 20th century reflects Australia's historical immigration patterns and the country's longstanding appeal as a destination for migrants and settlers. This percentage also underscores how immigration has played a pivotal role in shaping Australia's demographic landscape and cultural fabric throughout its history. The country has long been a melting pot of diverse cultures and ethnicities, with people choosing to make Australia their home from across the globe.
The year 1901 was also significant as it marked the federation of Australia, where six British colonies united to form the Commonwealth of Australia. This event likely influenced the country's demographic makeup, as the newly formed nation may have attracted immigrants seeking opportunities in a unified and potentially more stable political entity. The high percentage of overseas-born residents in this era underscores the contribution of immigrants to the foundation and development of modern Australia.
A closer examination of the countries of origin for these overseas-born individuals offers additional insights. Historical data suggests that a significant number migrated from the United Kingdom and its former colonies, reflecting Australia's historical ties to Britain. However, there were also migrants from other European countries, as well as a smaller but notable presence from Asia and other parts of the world. This diversity of origins contributed to the cultural richness and ethnic diversity that Australia is known for today.
The reasons for migration to Australia during this period were varied. Many were attracted by the prospect of a better life, seeking economic opportunities, or responding to specific skill shortages in the country. Others may have been motivated by political or religious freedoms, especially during a time when Europe was experiencing significant social and political upheavals. Some migrants also came as indentured laborers, particularly from the South Pacific, reflecting the complex nature of global migration patterns in the late 19th and early 20th centuries.
In conclusion, the statistic that 23% of Australia's population in 1901 were born overseas holds valuable insights into the country's historical connection to the world. It showcases how immigration has been a fundamental aspect of Australia's demographic narrative, contributing to its cultural diversity and societal development. Understanding these historical immigration patterns provides a foundation for appreciating the continued role of migration in shaping Australia's society and identity in the decades that followed.
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The population has grown from an estimated 300,000-2,400,000 Indigenous Australians in 1788
The population of Australia in 1901 was 3,773,801, excluding Indigenous Australians. The Indigenous population of Australia in 1901 is unknown, but estimates of the pre-1788 Indigenous population range from 300,000 to 2,400,000.
The Indigenous population of Australia has a long and complex history. The first modern humans are believed to have arrived in Australia between 50,000 and 60,000 years ago, and over time, they diversified into many distinct ethnic groups, or nations, with their own languages and cultures. By 1788, when the British arrived and began colonizing the continent, there were an estimated 250 Aboriginal languages in use. The Indigenous population at this time is estimated to have been between 300,000 and 2,000,000, with some ecologists estimating a population of up to 2,400,000.
The British colonization of Australia had a devastating impact on the Indigenous population. Diseases introduced by the colonists, such as smallpox, decimated the Indigenous communities, and violent conflict with the colonists led to thousands of deaths. The loss of their traditional lands and the introduction of alcohol by the British further disrupted their social and family structures. The Indigenous population continued to decline until the 1930s, when it began to recover, and Indigenous communities began organizing to advocate for their rights.
Despite some improvements in recent decades, Indigenous Australians continue to face inequality and oppression. In 2021, those who identified as being of Aboriginal and/or Torres Strait Islander origin represented 3.2% of the total population of Australia. While the median age of the overall Australian population in 2021 was 38.4, it was only 23.7 for Indigenous Australians, indicating a younger demographic.
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Frequently asked questions
The population of Australia in 1901 was 3,773,801 (excluding Indigenous Australians).
The median age of the population in 1901 was 22.5 years.
The rate of natural increase in 1901 was 14.9 persons per 1,000 population.
It is unknown what percentage of the population lived in urban areas in 1901, however, in 1911, 58% of the population lived in urban areas.
The population of Australia has grown significantly since 1901. In 2021, the population was estimated to be around 25.7 million.




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