San Diego is about 9 times bigger than Anguilla.

Anguilla is approximately 91 sq km, while San Diego is approximately 844 sq km, making San Diego 827% larger than Anguilla.
Tip: This to-scale comparison of Anguilla vs. San Diego uses the Mercator projection, which distorts the size of regions near the poles.
Our free app, MapSize by MyLifeElsewhere — compare any two places, to scale on your mobile device.