United States vs Australia
United States has a population of 340.1M, compared to Australia's 27.5M. United States is 12.4 times more populous than Australia. Economically, United States ($28.75T) has a GDP 16.4 times larger than Australia's ($1.76T). United States covers 9,525,067 km², 1.2 times larger than Australia's 7,692,024 km². Life expectancy in Australia stands at 83.1 years, 4.7 years higher than United States's 78.4 years.
United StatesAustralia| Population | +1135.1%340.1M | -91.9%27.5M |
| Area | +23.8%9,525,067 km² | -19.2%7,692,024 km² |
| GDP | +1536.3%$28.75T | -93.9%$1.76T |
| GDP Per Capita | +30.8%$84,534.041 | -23.6%$64,603.986 |
| Life Expectancy | -5.6%78.4 yrs | +6.0%83.1 yrs |
| Infant Mortality | +77.4%5.5 | -43.6%3.1 |
| Literacy Rate | — | — |
| Unemployment | +2.6%4.2% | -2.6%4.1% |
| Capital | Washington, D.C. | Canberra |
| Region | Americas | Oceania |
| Languages | English | English |
| Currencies | USD ($) | AUD ($) |
Last updated: March 2026
All data sourced from World Bank Open Data (2025) and REST Countries API. Economic data may reflect most recent available year.
Population Comparison
United States is 12.4 times more populous than Australia, with 340.1M residents compared to 27.5M. United States is among the world's 15 most populous countries, while Australia is a nation of 27.5M people. In terms of population density, United States averages 36 people per km² (sparse), while Australia averages 4 people per km² (sparse). While United States has grown at 0.62% annually over the past decade, Australia has grown at 1.43% per year over the same period.
Economy Comparison
United States is classified as a high-income economy, while Australia is classified as a high-income economy. The United States economy ($28.75T) is 16.4 times larger than Australia's ($1.76T). United States's GDP per capita of $84,534.041 is 526% above the regional average of 13,500 for Americas. Australia's GDP per capita of $64,603.986 is 105% above the regional average of 31,500 for Oceania. On a per-capita basis, residents of United States are on average 1.3 times wealthier than those in Australia.
Health & Quality of Life
Life expectancy in United States is 78.4 years, compared to 83.1 years in Australia, a gap of 4.7 years. Australia (83.1 years) is 11.1 years above the global average of 72 years, while United States (78.4 years) is 6.4 years above the global average of 72 years. At 5.5 deaths per 1,000 live births, United States's infant mortality is 77% higher than Australia's 3.1.
Geographic Comparison
United States (9,525,067 km²) is 1.2 times larger by land area than Australia (7,692,024 km²). United States shares borders with 2 countries, while Australia borders 0 countries. United States spans 11 timezones, compared to Australia's 8 timezones. United States lies in North America, while Australia is located in Oceania. United States is categorized within the Americas region (North America), whereas Australia belongs to Oceania (Australia and New Zealand).
Key Differences
The most significant difference between United States and Australia is in GDP: United States's $28.75T compared to Australia's $1.76T represents a 94% gap. The most significant difference between United States and Australia is in population: United States's 340.1M compared to Australia's 27.5M represents a 92% gap. The most significant difference between United States and Australia is in infant mortality: United States's 5.5 per 1,000 compared to Australia's 3.1 per 1,000 represents a 44% gap. These disparities reflect the broader structural differences between United States's high-income economy and Australia's high-income economy.
At a Glance: What the Numbers Mean
Living Standards
United States has a GDP per capita of $84,534.041, which is 1.3x that of Australia ($64,603.986). This gap reflects differences in economic development, industrial structure, and workforce productivity. In practical terms, average purchasing power in United States is significantly higher, though cost of living differences partially offset the raw income gap.
Population Density
United States is 10.0x more densely populated than Australia (36 vs 4 people per km²). Higher density typically correlates with more urbanization, greater demand for public transit, and higher housing costs. Australia's lower density suggests more rural land use and potentially lower urban congestion.
Healthcare and Longevity
Citizens of Australia live an average of 4.7 years longer than those of United States (83.1 vs 78.4 years). This gap reflects differences in healthcare access, nutrition, public health infrastructure, and environmental factors. This is a moderate difference that could narrow with continued development.
Economic Momentum
United States's economy grew at 2.8% compared to Australia's 1.4%. Both countries show healthy growth, though United States has a modest edge in economic dynamism.
Travel Comparison
United States vs Australia for Families
For family travel, Australia generally edges ahead due to lower infant mortality (3.1 vs 5.5 per 1,000), which is a useful proxy for healthcare infrastructure and child safety. United States offers its own advantages, including more geographic diversity for road trips. Both countries have family-friendly attractions, though Australia's higher GDP per capita typically correlates with better tourist infrastructure, public transport, and English-language availability.
United States vs Australia for Budget Travelers
Australia is typically the more budget-friendly destination, with a GDP per capita of $64,603.986 translating to lower prices for accommodation, food, and local transport. Budget travelers in Australia can expect to spend significantly less per day than in United States. However, United States may offer better value in specific categories such as intercity transport or package deals. Shoulder season travel in either country helps reduce costs further.
United States vs Australia for Retirees
Australia's life expectancy of 83.1 years suggests stronger healthcare infrastructure, which is a key factor for retirees. United States may offer a lower cost of living, which stretches pension income further. Key considerations for retirees include visa and residency requirements, healthcare access, climate preferences, and proximity to international airports. Both countries have established expat communities, though the specific visa options and healthcare quality vary by region within each country.
United States vs Australia Cost of Living
United States's GDP per capita is 1.3x that of Australia, which generally correlates with a higher cost of living. Housing, dining out, and services tend to be more expensive in United States, while Australia offers more purchasing power per dollar for everyday expenses. However, cost of living varies significantly by city within each country. Major urban centers in Australia can approach or exceed average costs in United States's smaller cities.
United States vs Australia for Digital Nomads
For digital nomads choosing between United States and Australia, key factors include internet infrastructure, visa policies, cost of living, and timezone compatibility with clients. United States spans 11 timezones while Australia covers 8. Australia's lower cost of living makes it attractive for stretching remote income. Both countries have growing digital nomad communities, though specific visa requirements for remote workers differ and should be verified before committing to a longer stay.
Frequently Asked Questions
Which is bigger, United States or Australia by population?
United States is larger by population, with 340.1M residents compared to Australia's 27.5M. United States is 12.4 times more populous than Australia.
Which country has a higher GDP, United States or Australia?
United States has the higher GDP at $28.75T, compared to Australia's $1.76T. United States's economy is 16.4 times larger.
How does life expectancy compare between United States and Australia?
Australia has a higher life expectancy at 83.1 years, compared to United States's 78.4 years. The gap between the two countries is 4.7 years. United States's life expectancy is 6.4 years above the global average of 72 years, while Australia's is 11.1 years above the global average of 72 years.
Which country is larger by area, United States or Australia?
United States is larger by land area, covering 9,525,067 km² compared to Australia's 7,692,024 km². United States is 1.2 times larger than Australia.
What languages are spoken in United States and Australia?
United States recognizes the following official language: English. Australia recognizes: English. Both countries share at least one common language.
Which country has lower inflation, United States or Australia?
United States has lower inflation at 2.9%, compared to Australia's 3.2%. United States's inflation is within the 2-3% range considered stable by most central banks, while Australia's rate is moderately elevated above the global median of 3.5%.
Is United States or Australia better for a family holiday?
For family travel, Australia generally edges ahead due to lower infant mortality (3.1 vs 5.5 per 1,000), which is a useful proxy for healthcare infrastructure and child safety. United States offers its own advantages, including more geographic diversity for road trips. Both countries have family-fri...
Is United States or Australia cheaper to visit?
Australia is typically the more budget-friendly destination, with a GDP per capita of $64,603.986 translating to lower prices for accommodation, food, and local transport. Budget travelers in Australia can expect to spend significantly less per day than in United States. However, United States may o...
Is United States or Australia better for retirement?
Australia's life expectancy of 83.1 years suggests stronger healthcare infrastructure, which is a key factor for retirees. United States may offer a lower cost of living, which stretches pension income further. Key considerations for retirees include visa and residency requirements, healthcare acces...
Is United States or Australia more expensive to live in?
United States's GDP per capita is 1.3x that of Australia, which generally correlates with a higher cost of living. Housing, dining out, and services tend to be more expensive in United States, while Australia offers more purchasing power per dollar for everyday expenses. However, cost of living vari...
Is United States or Australia better for digital nomads?
For digital nomads choosing between United States and Australia, key factors include internet infrastructure, visa policies, cost of living, and timezone compatibility with clients. United States spans 11 timezones while Australia covers 8. Australia's lower cost of living makes it attractive for st...