San Marino is about 9 times smaller than Guam.

Guam is approximately 544 sq km, while San Marino is approximately 61 sq km, making San Marino 11.21% the size of Guam. Meanwhile, the population of Guam is ~169,086 people (134,404 fewer people live in San Marino).
This to-scale comparison of Guam vs. San Marino uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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