United States is approximately 9,833,517 sq km, while Australia is approximately 7,741,220 sq km, making Australia 78.72% the size of United States. Meanwhile, the population of United States is ~332.6 million people (307.2 million fewer people live in Australia).
This to-scale map shows a size comparison of United States compared to Australia. For more details, see an in-depth quality of life comparison of Australia vs. United States using our country comparison tool.
