City size comparison

compared to

San Francisco is about 1.7 times smaller than Riverside.

Riverside is approximately 210 sq km, while San Francisco (including the city proper only) is approximately 121 sq km, making San Francisco 57.57% the size of Riverside.
Tip: This to-scale comparison of Riverside vs. San Francisco uses the Mercator projection, which distorts the size of regions near the poles.
Share

Compare further: San Francisco vs. Riverside

Flip Comparison · See true size
See San Francisco on top of Riverside
→
Cost of Living Comparison · 7 categories - 2026 data
Riverside is 25.4% cheaper than San Francisco
→
Our free app, MapSize by MyLifeElsewhere — compare any two places, to scale on your mobile device.
Download on the App Store GET IT ON Google Play