City size comparison

compared to

Fremont is about 1.7 times bigger than San Francisco.

San Francisco (including the city proper only) is approximately 121 sq km, while Fremont (map shows its 28 named neighbourhoods; the area covers the whole city) is approximately 202 sq km, making Fremont 67% larger than San Francisco.
Tip: This to-scale comparison of San Francisco vs. Fremont uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Fremont vs. San Francisco

Flip Comparison · See true size
See Fremont on top of San Francisco
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Cost of Living Comparison · 7 categories - 2026 data
San Francisco is 26.8% more expensive than Fremont
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