Country size comparison

compared to

San Diego is about 14 times bigger than San Marino.

San Marino is approximately 61 sq km, while San Diego is approximately 844 sq km, making San Diego 1,284% larger than San Marino.
Tip: This to-scale comparison of San Marino vs. San Diego uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: San Diego vs. San Marino
Flip Comparison · See true size
See San Diego on top of San Marino
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Cost of Living Comparison · 6 categories - 2026 data
San Marino is 32.8% cheaper than San Diego
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