New Jersey is about 3.7 times smaller than Sierra Leone.

Sierra Leone is approximately 71,740 sq km, while New Jersey is approximately 19,211 sq km, making New Jersey 26.78% the size of Sierra Leone. Meanwhile, the population of Sierra Leone is ~8.7 million people (99,288 more people live in New Jersey).
This to-scale comparison of Sierra Leone vs. New Jersey uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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