City size comparison

compared to

San Diego is about 2.3 times bigger than Las Vegas.

Las Vegas is approximately 367 sq km, while San Diego is approximately 844 sq km, making San Diego 130% larger than Las Vegas.
Tip: This to-scale comparison of Las Vegas 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. Las Vegas
Flip Comparison · See true size
See San Diego on top of Las Vegas
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Cost of Living Comparison · 7 categories - 2026 data
Las Vegas is 23.3% cheaper than San Diego
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