
Australia is one of the largest countries on Earth, and its land area is about 2.989 million square miles. In comparison, the United States has a land area of about 3.797 million square miles, making it approximately 27% larger than Australia. When considering the continental US (the lower 48 states), Australia is slightly bigger. To put it into perspective, travelling from Sydney to Perth in Australia is about the same as travelling from New York to Los Angeles in the US.
| Characteristics | Values |
|---|---|
| Land area | US: 3.797 million sq. miles or 9,833,517 sq. km; Australia: 2.989 million sq. miles or 7,741,220 sq. km |
| Size comparison | Australia is slightly bigger than the continental US (lower 48 states) |
| Population | US: 311.2 million; Australia: 26.1 million |
| Distance from Sydney to Perth | Comparable to the distance from New York to Los Angeles |
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What You'll Learn

Australia is smaller than the US (by 27%)
Australia is indeed smaller than the United States, but the difference in size might surprise you. When comparing the two countries, the US is approximately 27% larger than Australia. To put that into perspective, if you were to superimpose the US onto a map of Australia, the US would cover an area that extends beyond the borders of Australia, equivalent to almost a third extra in size.
In raw numbers, the land area of the US is about 3.797 million square miles, whereas Australia spans roughly 2.969 million square miles. This means that the US has nearly an extra million square miles of terrain. To give you a sense of scale, that additional area is larger than the entire country of Mexico.
Now, let's visualize it differently. If you imagine dividing Australia into three equal parts, the US would be just slightly larger than two of those Australian-sized portions combined. Alternatively, picture seven Australias; the US is almost eight Australias in size. This significant size difference is despite the fact that Australia already feels quite spacious with its vast interior, expansive deserts, and lengthy coastline.
This size disparity becomes even more apparent when you consider population density. The US has a population of over 331 million people, resulting in a relatively comfortable density of 90 people per square mile. In contrast, Australia's population is around 26 million, giving it a much lower density of 8 people per square mile. So, despite being smaller, Australia offers its inhabitants a more spread-out and less crowded environment.
The variation in size also translates to differences in climate, geography, and biodiversity. The US, with its additional landmass, encompasses a wider range of ecosystems, from the snowy mountains of the Rockies to the tropical climate of Florida. The larger land area also accommodates a greater variety of native wildlife, including iconic species like bald eagles and grizzly bears. Australia, despite its smaller size, boasts unique and diverse landscapes, from the Great Barrier Reef to the Outback, and is home to an extraordinary array of endemic species, such as kangaroos and koalas.
So, while the US is indeed bigger, both countries offer distinct and impressive experiences shaped by their respective dimensions.
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Australia is the smallest continent
To put it into perspective, travelling from Sydney to Perth (Australia's east to west coast) is about the same distance as travelling from New York to Los Angeles. Australia is also significantly less populated than the US, with a population of around 26.1 million people. This is roughly the same number of people as in the state of Texas.
Australia is known as "the Oldest Continent," "the Last of Lands," and "the Last Frontier." Most of the rocks that form the foundation of Australian landforms were created during the Precambrian and Paleozoic time, around 4.6 billion to 252 million years ago. However, the ages of the cores of all the continents are approximately the same.
The Australian mainland extends nearly 2,500 miles (4,000 km) from west to east and nearly 2,000 miles (3,200 km) from Cape York Peninsula in the northeast to Wilsons Promontory in the southeast. In the south, Australian jurisdiction extends a further 310 miles (500 km) to the island of Tasmania, and in the north, it reaches the southern shores of Papua New Guinea.
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Sydney to Perth is like New York to LA
Australia is about the same size as the continental US, with a land area of 2.989 million square miles compared to the US's 3.797 million square miles. To put this into perspective, the distance from Sydney to Perth on Australia's east to west coasts is about the same as the distance from New York to Los Angeles.
The flight distance between Sydney and Perth is around 2,040 to 2,045 miles (3,284 to 3,290 kilometers), with an estimated flight time of around 5 hours and 5 minutes. The driving distance is approximately 2,433 to 2,445 miles (3,916 to 3,935 kilometers), and the journey would take around 35 to 46 hours by car.
The flight distance between New York and Los Angeles is around 2,457 to 2,462 miles (3,955 to 3,963 kilometers), with a flight time of approximately 5 hours and 9 minutes. The driving distance between these two cities is slightly longer, at around 2,725 miles (4,385 kilometers).
So, the statement "Sydney to Perth is like New York to LA" is quite accurate in terms of distance. However, it's important to note that the time it takes to drive between Sydney and Perth is significantly longer than the drive between New York and Los Angeles due to the vast, sparsely populated areas of Australia.
Additionally, while Sydney and New York are both major cities located on the east coast of their respective countries, Perth is a more isolated city in western Australia, while Los Angeles is on the west coast of the US but not as remote.
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Australia has 311.2 million fewer people
The land area of the United States is approximately 3.797 million square miles, while Australia's land area is around 2.969 million square miles. Although Australia is the sixth-largest country in the world in terms of total area, the United States is slightly larger. However, the population of the United States is significantly higher than that of Australia. As of 2023, the US population is estimated to be around 333 million, while Australia's population is roughly 22 million. This means that the United States has over 311.2 million more people than Australia. To put this into perspective, the population density of the US is 92.6 people per square mile, while Australia's is just under 7 people per square mile.
The vast difference in population between the two countries can be attributed to several factors. One of the main reasons is that the United States has a much larger land area that is habitable. While Australia is slightly smaller in land area, a significant portion of it is desert or semi-arid, making it unsuitable for large-scale human habitation. In contrast, the United States has a more diverse range of habitable climates, from the temperate climates of the Pacific Northwest to the sunny and warm climates of the South and Southwest.
Historically, the United States has also had a higher rate of immigration than Australia, which has contributed to its larger population. The US has long been a destination for immigrants from all over the world, seeking opportunities and a better life. While Australia also welcomes immigrants, the numbers are relatively smaller due to its more stringent immigration policies and its geographic distance from major population centers in Europe, Asia, and the Americas.
The birth rate in the United States has also traditionally been higher than in Australia, although this gap has narrowed in recent years. The US has a birth rate of approximately 11.9 births per 1,000 people, while Australia's birth rate is 11.4 births per 1,000 people. However, the US also has a higher death rate, with 8.8 deaths per 1,000 people compared to Australia's 6.4 deaths per 1,000 people.
Despite having a significantly smaller population, Australia has a higher GDP per capita than the United States. In 2022, Australia's GDP per capita was estimated to be Int$54,366, while the US GDP per capita was Int$69,299. This indicates that Australia has a higher standard of living on average, despite having a smaller economy overall.
In conclusion, while the United States and Australia are similar in size in terms of land area, the US has a substantially larger population. This has implications for the economies, societies, and cultures of the two countries, and it will be interesting to see how these comparisons develop in the future.
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US has 50 states, Australia has 6 states
The United States is a large country, with a land area of 3.797 million square miles. It is made up of 50 states, each with its own unique culture, history, and geography. The US is so large that it spans multiple time zones, with a four-hour time difference between its east and west coasts.
In comparison, Australia is also a large country, with a land area of 2.968,464 square miles. While it is slightly smaller than the US, Australia only has six states: New South Wales, Queensland, South Australia, Victoria, Western Australia, and Tasmania. These six states are further supported by ten federal territories, three of which are internal territories (Australian Capital Territory, Jervis Bay Territory, and Northern Territory) and seven of which are external territories.
The smaller number of states in Australia compared to the US may be due to a variety of factors, including historical and geographical differences between the two countries. Australia has a smaller population than the US, with the whole of Australia having a similar population to the single state of Texas.
Despite having fewer states, Australia is still a large country with vast distances between cities. For example, the distance from Cairns to Brisbane is longer than the distance from Brisbane to Melbourne. Similarly, the drive from Melbourne to Brisbane only covers half the distance to Cairns. This vastness is also reflected in the distance between Sydney and Perth, which is comparable to the distance between New York and Los Angeles in the US.
In summary, while the US has 50 states and Australia has only 6 states, both countries are large in size and have diverse geographies and populations. The differences in the number of states and territories between the two countries highlight their unique histories and political structures.
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Frequently asked questions
The US is 27% larger than Australia. The US is approximately 9,833,517 sq km, while Australia is about 7,741,220 sq km.
Australia is slightly bigger than the continental US (lower 48 states).
The US has a significantly higher population than Australia. The US population is around 311.2 million, while Australia's is approximately 26.1 million.
The distance from Sydney to Perth is roughly the same as the distance from New York to Los Angeles.

















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