Damon Mcknight
Australia and the USA are two of the largest countries in the world, with the USA holding a significant size advantage over Australia. The USA is approximately 27% larger than Australia, with a land area of 3.797 million square miles compared to Australia's 2.989 million square miles. In terms of population, the USA has a bustling population of over 333 million people, while Australia is home to around 26 million people. Despite being smaller in size, Australia is known for its vast, open spaces and lower population density, offering a unique charm to its diverse landscapes, which range from the tropical to the arid and temperate.
| Characteristics | Values |
|---|---|
| Australia's size | 7,688,287 sq km or 7.7 million sq km |
| America's size | 9,833,517 sq km or 9.8 million sq km |
| Australia's population | 25-27 million |
| America's population | 330-333 million |
| Australia's longest river | Murray River (2,375 km) |
| America's longest river | Missouri River (3,768 km) |
| Number of universities in Australia | 43 |
| Number of universities in America | 5,300 |
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What You'll Learn
Australia is smaller than the US
Australia is the planet's sixth-largest country, covering an area of about 7.7 million square kilometres. In comparison, the United States is approximately 9.8 million square kilometres, making the US 27% larger than Australia.
The US has a significant size advantage over Australia, with a landmass of about 2 million square kilometres more than Australia. This size difference is reflected in the diversity of landscapes in each country. The US boasts a variety of geographical features, from the Grand Canyon to the Great Lakes, while Australia is known for its sprawling outback and picturesque coastlines.
The population density in Australia is much lower than in the US. Australia has a population of about 25-27 million people, while the US has a population of over 330 million. This means that Australia has a sense of tranquility and space, with its population concentrated along the coastline. In contrast, the US has bustling cities and a population spread more evenly across its land.
The difference in population density between the two countries results in varied lifestyles and environments. Australia's expansive wilderness areas and unique biodiversity face critical challenges in protecting endangered species such as the koala. On the other hand, the US has over 250,000 rivers compared to Australia's 439 named rivers. The US also has a broader range of climates, from tropical to arctic, while Australia experiences tropical, arid, and temperate climates.
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The US has a much higher population density
Australia is the planet's sixth-largest country by area, covering 7,688,287 sq km or 7,741,220 sq km, depending on the source. The United States, meanwhile, covers 9,833,517 sq km, making it 27% larger than Australia. However, the US has a much higher population density.
In 2021, Australia had a population of about 25.77 million people, while the US had a population of about 334.9 million, meaning 311.2 million more people live in the US. This gives the US a significantly higher population density of 36.2997410198723 people per sq km, compared to Australia's 3.33922844714392.
Much of Australia's interior remains uninhabited, with the majority of its population living in coastal cities and metropolises. Most Australians are of European, predominantly British, descent, although there is a growing share of the population with Asian heritage. Only a small percentage belongs to the indigenous Aboriginal population.
The US's higher population density may be due in part to its larger overall population, which could be a result of higher rates of natural increase and immigration compared to Australia. Additionally, the US has a higher GDP, GDP per capita, and proportion of people living above 50% of the median income compared to Australia, which may make it a more attractive destination for immigrants.
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Australia's east-west distance is 5030km
Australia is the planet's sixth-largest country, with a total area of 7,688,287 square kilometres, or around 7,741,220 square kilometres. In comparison, the United States is approximately 9,833,517 square kilometres, making it 27% larger than Australia. The population of Australia is roughly 26.1 million, while the US population is about 311.2 million.
The east-west distance of Australia is about 4,000 kilometres, with the distance from Perth to Brisbane (cities on opposite coasts) being 3,613 kilometres. The straight-line distance between the east and west extremes of Steep Point and Cape Byron is 4,030 kilometres, while the driving distance between these two points is 3,930 kilometres.
Several people have walked across Australia from east to west or vice versa. John Olsen walked 4,752 kilometres from Steep Point to Cape Byron in 200 days in 2008-2009. In 1998, David Mason walked from Byron Bay to Dalby, picked up three camels, and then walked through the Simpson Desert to Uluru and across the Gibson Desert to Steep Point, covering a total distance of 14,900 kilometres in 236 days.
Driving from Perth to Sydney, which are also on opposite coasts, takes 41 hours and covers a distance of 3,930 kilometres.
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The US has diverse landscapes
The United States boasts some of the world's most beautiful and diverse landscapes. The country is approximately 27% larger than Australia, the planet's sixth-largest country. The US spans over 3.8 million square miles, offering a stunning array of geographic features that shape the country's natural beauty, culture, economy, and history.
One of the most iconic American landscapes is the majestic Rocky Mountains. This mountain range stretches over 3,000 miles, from Canada to New Mexico, with towering peaks that rise over 14,000 feet. The Rockies offer breathtaking vistas and outdoor adventures. Moving eastward, the rolling Appalachian Mountains provide a stark contrast to the western mountains, showcasing the diversity of America's topography.
The US is also defined by its vast river systems, particularly the Mississippi River Basin, which covers 31 states and two Canadian provinces, providing a vital water source and habitat for diverse wildlife. The Pacific Coast is renowned for its dramatic landscapes, including rugged cliffs, wide sandy beaches, and dense rainforests. The Pacific Northwest, specifically the Siuslaw National Forest near Portland, Oregon, is incredibly lush due to its high rainfall and proximity to the Pacific Ocean.
In contrast, the American landscape transitions into arid and semi-arid regions inland, such as the Mojave Desert and Death Valley, known for their extreme temperatures and unique plant life. The Sonoran Desert, covering parts of Arizona, California, and Mexico, boasts a rich ecosystem thanks to its higher rainfall compared to other North American deserts. The Badlands in South Dakota present another severe landscape, once inhabited by saber-tooth tigers and rhinos, and now home to bighorn sheep, bison, and black-footed ferrets.
From the frozen tundras of Alaska to the warm waters of Hawaii, the US offers a diverse range of ecosystems and landscapes that shape the country's history and future. These landscapes are a testament to the complex interplay between the environment and the people who call America home.
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Australia has unique environmental challenges
Australia is slightly larger than continental America, with a land area of 2.989 million square miles compared to America's 3.797 million square miles. In terms of size, travelling from Sydney to Perth in Australia is comparable to travelling from New York to Los Angeles in the US.
Australia's Unique Environmental Challenges
Australia is facing significant environmental challenges, including a decline in biodiversity, habitat damage, and the impact of climate change. The country's diverse and unique ecosystems, such as the Great Barrier Reef, are particularly vulnerable.
One of the key challenges is the loss of biodiversity. This is primarily driven by human activities, including deforestation, urban development, and the intensification of resource use in sectors like forestry, fisheries, and agriculture. Australia has experienced a significant loss of mammal species, more than any other OECD country, and its oceans and marine life are suffering from rising temperatures and increased greenhouse gas emissions.
Climate change is another critical issue for Australia. The country's extensive arid and semi-arid areas, warm climate, and high annual rainfall variability make it highly susceptible to the effects of global warming. The continent's high fire risk further exacerbates this susceptibility. Climate change is leading to more frequent and severe environmental extremes, including unprecedented wildfires, heatwaves, floods, and droughts, which have significant impacts on human health and well-being.
Additionally, Australia's coastal areas face significant threats due to their high population density and vulnerability to climate change impacts. Rising sea levels, invasive species, and marine heatwaves contribute to coral bleaching and ecosystem disruption. The economic impact of environmental degradation is also notable, with land degradation costing Australia approximately $1 billion annually, and industries such as tourism and fishing being affected by the decline of coastal ecosystems.
To address these challenges, Australia needs to implement effective environmental management strategies, improve soil and land management, and coordinate conservation efforts to protect its unique ecosystems and biodiversity.
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Frequently asked questions
The USA is around 27% larger than Australia. The USA has a land area of 3.797 million square miles, while Australia's land area is 2.989 million square miles.
The USA has a much higher population density than Australia. The USA has a population of over 333 million, while Australia's population is around 26 million.
The USA has a diverse range of geographical features, including the Grand Canyon and the Great Lakes. Australia is known for its expansive wilderness areas and unique wildlife, such as the Great Barrier Reef and the koala.
