New York City is about 5 times bigger than Dayton.

Dayton is approximately 145 sq km, while New York City (including all five boroughs: Manhattan, Brooklyn, Queens, The Bronx, and Staten Island) is approximately 781 sq km, making New York City 440% larger than Dayton.
Tip: This to-scale comparison of Dayton vs. New York City uses the Mercator projection, which distorts the size of regions near the poles.
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