The following is a comparison between the United States of America (USA) and Australia, two large countries of the world. Let’s read.
USA and Australia – country comparison
GDP
The United States has a larger GDP and a higher GDP per capita than Australia. It is the world’s largest economy by nominal GDP, with major strengths in technology, finance, manufacturing, and healthcare. Australia has a smaller but highly developed economy, driven by sectors such as mining, natural resources, agriculture, finance, and other services. The table below compares the GDP and GDP per capita of the United States and Australia.
| 2025 (IMF) | USA | Australia |
|---|---|---|
| Currency | United States Dollar | Australian Dollar |
| GDP (nominal, USD) | $30.77 trillion | $1.84 trillion |
| GDP per capita (nominal, USD) | $89.99 thousand | $66.35 thousand |
| GDP (PPP, international $) | $30.77 trillion | $2 trillion |
| GDP per capita (PPP, international $) | $89.99 thousand | $72.13 thousand |
Population
The United States is one of the most populous countries in the world. Australia, by contrast, has a relatively small population and one of the lowest population densities among large countries.
| 2025 estimate | USA | Australia |
|---|---|---|
| Population | 347.3 million | 27 million |
| Population aged 0-14 | 17% | 18% |
| Population aged 15-64 | 65% | 64% |
| Population aged 65 and older | 18% | 18% |
| Total fertility rate, per woman | 1.6 | 1.6 |
Life
| USA | Australia | |
|---|---|---|
| Life expectancy at birth (2023/UN) | 79.3 | 83.92 |
| Human Development Index rank (2023) | 17th | 7th |
| Human Development Index value | 0.938 | 0.958 |
Overview
The United States of America is larger than Australia in terms of area, being roughly 1.3 times larger. Both countries rank among the largest countries in the world by area.
| USA | Australia | |
|---|---|---|
| Area | approximately 9.8 million sq km | approximately 7.7 million sq km |
| Population | 347.3 million (2025 estimate) | 27 million (2025 estimate) |
| Capital city | Washington, D.C. | Canberra |
| Largest metropolitan area | New York metropolitan area (Tri-State area) | Greater Sydney |
| Most spoken language | English | English |
| Most popular sport | American football | Australian rules football |
Geography
| USA | Australia | |
|---|---|---|
| Region | North America | Oceania |
| Forest cover (2023) | 33.9% | 17.4% |
| Total number of time zones | 11 | 9 |
| Highest mountain peak | Denali/Mount McKinley (6,190 m/20,310 ft) | Mount Kosciuszko (2,228 m/7,310 ft) (highest peak on mainland Australia); Mawson Peak (2,745 m/9,006 ft) (highest peak in Australian territory) |
| Largest island | Hawaii island | Mainland Australia |
| Major rivers | Missouri, Mississippi, Yukon, Rio Grande, Arkansas, Colorado, etc. | Murray, Murrumbidgee, Darling, Lachlan, Cooper Creek, Flinders, etc. |
| National animal | American bison (national mammal) | Kangaroo |
| National bird | Bald eagle | Emu |
| National tree | The oak | The golden wattle |
(Also read: USA and UK – country comparison | USA vs UK)
Tourism
| USA | Australia | |
|---|---|---|
| International tourist arrivals | 72.4 million (2024) | 8.3 million (2024) |
| Number of UNESCO World Heritage Sites | 26 | 21 |
| Popular places to visit | New York City, Los Angeles, Chicago, Yellowstone National Park, San Francisco, Yosemite National Park, Grand Canyon, etc. | Melbourne, Sydney, Brisbane, Perth, Adelaide, Gold Coast, Great Barrier Reef, Uluru-Kata Tjuta National Park, etc. |
| Busiest airport | Hartsfield-Jackson Atlanta International Airport | Sydney Kingsford Smith Airport |
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