City size comparison

compared to

Rockville is about 17 times smaller than Madrid.

Madrid is approximately 604 sq km, while Rockville (map shows its 87 named neighbourhoods; the area covers the whole city) is approximately 35 sq km, making Rockville 5.81% the size of Madrid.
Tip: This to-scale comparison of Madrid vs. Rockville uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Rockville vs. Madrid

Flip Comparison · See true size
See Rockville on top of Madrid
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Cost of Living Comparison · 7 categories - 2026 data
Madrid is 12.5% cheaper than Rockville
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