New Jersey is about 4.8 times smaller than Portugal.

Portugal is approximately 92,090 sq km, while New Jersey is approximately 19,211 sq km, making New Jersey 20.86% the size of Portugal. Meanwhile, the population of Portugal is ~10.2 million people (1.5 million fewer people live in New Jersey).
This to-scale comparison of Portugal vs. New Jersey uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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