State size comparison

compared to

New Jersey is about 23 times bigger than San Diego.

San Diego is approximately 844 sq km, while New Jersey is approximately 19,211 sq km, making New Jersey 2,176% larger than San Diego.
Tip: This to-scale comparison of San Diego vs. New Jersey uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: New Jersey vs. San Diego
Flip Comparison · See true size
See New Jersey on top of San Diego
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Cost of Living Comparison · 7 categories - 2026 data
San Diego is 9.3% more expensive than New Jersey
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