Australia vs United States
Australia has a population of 27.5M, compared to United States's 340.1M. 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.
AustraliaUnited States| Population | -91.9%27.5M | +1135.1%340.1M |
| Area | -19.2%7,692,024 km² | +23.8%9,525,067 km² |
| GDP | -93.9%$1.76T | +1536.3%$28.75T |
| GDP Per Capita | -23.6%$64,603.986 | +30.8%$84,534.041 |
| Life Expectancy | +6.0%83.1 yrs | -5.6%78.4 yrs |
| Infant Mortality | -43.6%3.1 | +77.4%5.5 |
| Literacy Rate | — | — |
| Unemployment | -2.6%4.1% | +2.6%4.2% |
| Capital | Canberra | Washington, D.C. |
| Region | Oceania | Americas |
| Languages | English | English |
| Currencies | AUD ($) | USD ($) |
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. Australia is a nation of 27.5M people, while United States is among the world's 15 most populous countries. In terms of population density, Australia averages 4 people per km² (sparse), while United States averages 36 people per km² (sparse). While Australia has grown at 1.43% annually over the past decade, United States has grown at 0.62% per year over the same period.
Economy Comparison
Australia is classified as a high-income economy, while United States is classified as a high-income economy. The United States economy ($28.75T) is 16.4 times larger than Australia's ($1.76T). Australia's GDP per capita of $64,603.986 is 105% above the regional average of 31,500 for Oceania. United States's GDP per capita of $84,534.041 is 526% above the regional average of 13,500 for Americas. 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 Australia is 83.1 years, compared to 78.4 years in United States, 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). Australia shares borders with 0 countries, while United States borders 2 countries. Australia spans 8 timezones, compared to United States's 11 timezones. Australia lies in Oceania, while United States is located in North America. Australia is categorized within the Oceania region (Australia and New Zealand), whereas United States belongs to Americas (North America).
Key Differences
The most significant difference between Australia and United States is in GDP: Australia's $1.76T compared to United States's $28.75T represents a 94% gap. The most significant difference between Australia and United States is in population: Australia's 27.5M compared to United States's 340.1M represents a 92% gap. The most significant difference between Australia and United States is in infant mortality: Australia's 3.1 per 1,000 compared to United States's 5.5 per 1,000 represents a 44% gap. These disparities reflect the broader structural differences between Australia's high-income economy and United States'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.
Frequently Asked Questions
Which is bigger, Australia or United States 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, Australia or United States?
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 Australia and United States?
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. Australia's life expectancy is 11.1 years above the global average of 72 years, while United States's is 6.4 years above the global average of 72 years.
Which country is larger by area, Australia or United States?
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 Australia and United States?
Australia recognizes the following official language: English. United States recognizes: English. Both countries share at least one common language.
Which country has lower inflation, Australia or United States?
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%.