New Jersey is about 8 times smaller than Iowa.

Iowa is approximately 144,701 sq km, while New Jersey is approximately 19,211 sq km, making New Jersey 13.28% the size of Iowa. Meanwhile, the population of Iowa is ~3.0 million people (5.7 million more people live in New Jersey).
This to-scale comparison of Iowa vs. New Jersey uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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