City size comparison

compared to

Dublin is about 7 times smaller than San Diego.

San Diego is approximately 844 sq km, while Dublin is approximately 118 sq km, making Dublin 13.96% the size of San Diego.
Tip: This to-scale comparison of San Diego vs. Dublin uses the Mercator projection, which distorts the size of regions near the poles.
Share
Compare further: Dublin vs. San Diego
Flip Comparison · See true size
See Dublin on top of San Diego
→
Cost of Living Comparison · 7 categories - 2026 data
San Diego is 21.6% more expensive than Dublin
→