Chula Vista is about 12 times smaller than London.

London (including the 32 boroughs of greater London) is approximately 1,572 sq km, while Chula Vista (map shows its 22 named neighbourhoods; the area covers the whole city) is approximately 129 sq km, making Chula Vista 8.18% the size of London.
Tip: This to-scale comparison of London vs. Chula Vista uses the Mercator projection, which distorts the size of regions near the poles.
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