New Jersey is about 512 times smaller than United States.

United States is approximately 9,833,517 sq km, while New Jersey is approximately 19,211 sq km, making New Jersey 0.2% the size of United States. Meanwhile, the population of United States is ~337.3 million people (328.6 million fewer people live in New Jersey).
This to-scale comparison of United States vs. New Jersey uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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