New Jersey is about 9 times smaller than Washington.

Washington is approximately 172,348 sq km, while New Jersey is approximately 19,211 sq km, making New Jersey 11.15% the size of Washington. Meanwhile, the population of Washington is ~6.7 million people (2.1 million more people live in New Jersey).
This to-scale comparison of Washington vs. New Jersey uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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