Puerto Rico is about 13 times smaller than Pennsylvania.

Pennsylvania is approximately 116,075 sq km, while Puerto Rico is approximately 9,104 sq km, making Puerto Rico 7.84% the size of Pennsylvania. Meanwhile, the population of Pennsylvania is ~12.7 million people (9.6 million fewer people live in Puerto Rico).
This to-scale comparison of Pennsylvania vs. Puerto Rico uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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