Fargo is about 3.3 times smaller than New Orleans.

New Orleans is approximately 439 sq km, while Fargo (map shows its 38 named neighbourhoods; the area covers the whole city) is approximately 133 sq km, making Fargo 30.39% the size of New Orleans.
Tip: This to-scale comparison of New Orleans vs. Fargo uses the Mercator projection, which distorts the size of regions near the poles.
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