Antwerp is around the same size as Des Moines.

Des Moines (map shows its 58 named neighbourhoods; the area covers the whole city) is approximately 228 sq km, while Antwerp (map shows its 62 named neighbourhoods; the area covers the whole city) is approximately 208 sq km, making Antwerp 91.19% the size of Des Moines.
Tip: This to-scale comparison of Des Moines vs. Antwerp uses the Mercator projection, which distorts the size of regions near the poles.
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