Puerto Rico is about 2.1 times smaller than New Jersey.

New Jersey is approximately 19,211 sq km, while Puerto Rico is approximately 9,104 sq km, making Puerto Rico 47.39% the size of New Jersey. Meanwhile, the population of New Jersey is ~8.8 million people (5.7 million fewer people live in Puerto Rico).
This to-scale comparison of New Jersey vs. Puerto Rico uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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