Ruqayyah Snyder
Australia and the USA are both vast countries with unique attractions and diverse landscapes. Australia, the world's smallest continent, covers approximately 7,741,220 sq km or 7.692 million sq km, while the USA spans about 9,833,517 sq km or 9.834 million sq km. This makes the USA around 27% larger than Australia. The difference in size between these two countries impacts their travel experiences, economies, and environmental challenges.
| Characteristics | Values |
|---|---|
| Land Area | The United States is approximately 9,833,517 sq km, while Australia is approximately 7,741,220 sq km. Thus, the US is bigger than Australia in terms of land area. |
| Population | The US has a population of about 331 million people, while Australia's population is around 26 million. So, the US has a significantly larger population. |
| Population Density | The population density in the US is 35 per sq km, whereas it is 3.3 per sq km in Australia. This indicates that Australia has a much lower population density compared to the US. |
| Number of States | The US is composed of 50 states, plus Washington D.C. Australia, on the other hand, has 6 states and 10 territories. |
| Time Zones | The US spans 6 time zones, while Australia uses 3 main time zones. |
| Capital Cities | The capital of the US is Washington, D.C., and the capital of Australia is Canberra. |
| Largest Cities | The largest city in the US by population is New York City, with over 8.5 million people. In Australia, the largest city is Sydney, with a population of around 5.3 million. |
| GDP (Nominal) | The US has a much larger economy, with a GDP of about $25.4 trillion, compared to Australia's GDP of $1.8 trillion. |
| GDP (PPP) | In terms of purchasing power parity, the US has a GDP of $22.6 trillion, while Australia's GDP is $1.4 trillion. |
| Per Capita Income | The US has a per capita income of roughly $76,000, whereas Australia's per capita income is higher at around $83,000. |
| Geography | The US shares land borders with Canada and Mexico, and has a diverse landscape including mountains, plains, deserts, and coastal areas. Australia is an island continent with a vast interior desert, a tropical north, and a temperate south. |
| Climate | Both countries have varied climates, but the US experiences a wider range of weather conditions due to its latitude and geographic diversity. Australia is generally warmer and tends to have a more consistent climate across the country. |
| Natural Resources | Both nations are abundant in natural resources, including minerals, timber, and agricultural land. The US has significant coal, oil, and natural gas reserves, while Australia is known for its vast mineral resources, including iron ore, coal, and natural gas. |
| Political System | Both countries are federal parliamentary democracies, but differ in specific structures and processes. |
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What You'll Learn
The USA is 27% larger than Australia
Australia is the world's smallest continent and largest island, with a land area of about 7.692 million square kilometres or 2.989 million square miles. The United States, on the other hand, covers approximately 9.834 million square kilometres or 3.797 million square miles. This makes the USA about 27% larger than Australia.
To put this into perspective, travelling from Sydney to Perth in Australia is roughly the same distance as travelling from New York to Los Angeles in the US. Both countries offer unique travel experiences, with Australia's famous road trips through the Outback and the USA's iconic journeys like Route 66.
The size of a country can have a significant impact on its economy and environment. Australia, with its abundant natural resources, has a strong and resilient economy driven by industries like mining, agriculture, and services. Its large land area enables it to be a major player in resource exports, contributing to its GDP.
In comparison, the USA, with its larger size, is the world's largest economy, powered by diverse sectors including technology, finance, healthcare, and entertainment. The country's sheer size, along with innovation and entrepreneurship, makes it a global economic powerhouse.
While Australia has a smaller population of around 26.1 million people, the USA has a population of about 311.2 million, highlighting the significant differences between these two nations.
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Australia is the smallest continent, largest island
Australia is the smallest continent in the world. It has a land area of 2.989 million square miles (8.56 million square kilometres). In comparison, the USA has a land area of 3.797 million square miles. Australia is about the same size as continental USA (excluding Alaska and Hawaii). The distance from the east coast of Australia (Sydney) to the west coast (Perth) is about the same as the distance from New York to Los Angeles in the USA.
Australia is also the largest island in the world. The continent of Australia includes mainland Australia, Tasmania, the island of New Guinea (Papua New Guinea and Western New Guinea), the Aru Islands, the Ashmore and Cartier Islands, most of the Coral Sea Islands, and some other nearby islands.
The continent of Australia is sometimes known by the names Sahul, Australinea, or Meganesia to differentiate it from the country of Australia. The name ""Sahul" comes from the Sahul Shelf, which is part of the continental shelf of the Australian continent.
Australia is nearly four times as large as Greenland, which is another island that some people consider to be a continent. However, Greenland shares a tectonic plate with North America, while Australia has its own tectonic plate. Additionally, a large percentage of Australia's plant and animal species are unique to the continent, whereas fewer of Greenland's species are unique. Finally, Aboriginal people are limited to Australia, while indigenous Greenlanders (the Inuit) are found throughout the Arctic, including parts of Canada, the USA, and Russia.
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The US has more people, Australia has more wildlife
Australia and the USA are similar in size, with the USA being slightly larger. However, the population of the USA is significantly higher than that of Australia. As of August 2025, the population of the USA was estimated to be around 347 million, while Australia's population was estimated to be approximately 27 million. This means that the USA has over twelve times more people than Australia.
This vast difference in population size is due to several factors, including historical events, geographical variations, and cultural dynamics. One significant factor is that the USA has a much higher rate of immigration compared to Australia. Throughout its history, the USA has attracted a large number of immigrants from all over the world, contributing to its diverse and growing population. In contrast, Australia's immigration rates, while substantial, have been relatively lower.
Additionally, the USA has a higher birth rate than Australia, which also contributes to its larger population. Cultural factors, social policies, and economic conditions in the USA have influenced fertility rates, resulting in a higher number of births over the years.
While the USA boasts a larger human population, Australia takes the lead when it comes to wildlife. Australia is one of only 17 'megadiverse' nations, meaning it possesses an exceptionally high level of biodiversity. Australia is home to a vast array of unique species found nowhere else on Earth. 87% of its mammal species, 93% of reptiles, 94% of frogs, and 45% of bird species are endemic to the country.
Some examples of Australia's unique wildlife include the Palm Cockatoo, a large black cockatoo with a 3.6-meter wingspan; the Banded Hare-wallaby, a small macropod that shelters in burrows during the day; and the Bare-nosed Wombat, one of three wombat species found in Australia. The country also boasts a range of unique frog species, such as the Bilingual Frog, known for its distinctive two-type mating call.
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The US has more varied weather
Australia is about the same size as continental USA. The land area of Australia is 2.989 million square miles, compared to the US at 3.797 million square miles. However, the US has a much larger population, with the whole of Australia having around the same number of people as the state of Texas.
When it comes to weather, the US has a more varied climate compared to Australia. The US experiences a wider range of weather patterns, from powerful blizzards and snowstorms in the north to hurricanes and tropical storms along its southern coast. The US also has a greater variety of seasons, with four distinct seasons in most regions.
In contrast, Australia typically has dry summers in the south and dry winters in the north due to the subtropical high-pressure belt. The country is separated from the polar regions by the Southern Ocean, resulting in a relatively mild winter without the frigid polar air that sweeps over the northern continents during their winter.
While Australia does experience a range of climates, from tropical in the north to temperate in the southeast and southwest, the variety is not as diverse as that of the US. The largest part of Australia is desert or semi-arid, and the country is known for its hot and sunny weather, with frequent droughts caused by the El Niño-Southern Oscillation.
The US, on the other hand, offers a broader spectrum of weather conditions, including hot and humid summers in the Midwest, snowy winters in the Northeast, mild and rainy weather in the Pacific Northwest, and sunny days in the Southwest. The US also has a wider range of temperatures, with some regions experiencing extreme cold and others dealing with intense heat.
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The US is a bigger global economic powerhouse
While Australia is bigger in land area than the continental US, the US is a much bigger global economic powerhouse. The US has the largest economy in the world by nominal GDP and is the second-largest by purchasing power parity (PPP). Constituting less than 5% of the world's population, Americans generate and earn more than 20% of the world's total income. The US accounted for 14.8% of the global aggregate GDP in 2024 in PPP terms and 26.2% in nominal terms. The US dollar is the world's reserve currency, and several countries use it as their official currency. The US has a highly developed mixed economy, and since World War II, it has achieved relatively steady growth, low unemployment, low inflation, and rapid technological advances.
The US has consistently pursued the opening of world markets and the expansion of trade since 1934, which has played a crucial role in its economic prosperity. Trade liberalization efforts have resulted in higher real incomes for Americans, with a 9% increase representing $1.5 trillion in additional income in 2013. Over the past few years, US exports have contributed significantly to economic growth, supporting millions of jobs.
The US has a highly progressive taxation system compared to other developed countries, and labor mobility has been essential in adapting to changing economic conditions. The country has experienced a seven-year economic freedom decline, which could impact its economic health. However, the US has a strong global presence, and American investors and corporations have influence worldwide.
In conclusion, despite Australia's larger land mass, the US surpasses Australia as a global economic powerhouse. The US has the largest economy, high income levels, a strong dollar, a progressive taxation system, and a history of successful trade policies. These factors contribute to its dominant position in the global economy.
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Frequently asked questions
The USA is bigger than Australia. The USA covers approximately 9.83 million square kilometers, while Australia covers around 7.7 million square kilometers.
The size difference between the USA and Australia impacts travel experiences. In Australia, road trips often involve long drives through arid landscapes with occasional kangaroo sightings. In contrast, the USA offers a variety of landscapes and climates, from the sun-soaked coasts of California and Florida to the snowy mountains of Alaska and Colorado.
The size of a country has significant implications for its economy and environment. A larger country, like the USA, tends to have a more diverse economy due to its various sectors and industries. Australia, despite having a smaller land area, has a strong economy driven primarily by mining, agriculture, and services, leveraging its natural resources. The size of a country also influences environmental challenges, with both countries facing unique issues related to conservation, natural resource management, and ecological preservation.
