New Jersey is about 403 times smaller than Australia.

Australia is approximately 7,741,220 sq km, while New Jersey is approximately 19,211 sq km, making New Jersey 0.25% the size of Australia. Meanwhile, the population of Australia is ~26.1 million people (17.3 million fewer people live in New Jersey).
This to-scale comparison of Australia vs. New Jersey uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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