Boston is about 1.3 times smaller than Stockton.

Stockton is approximately 164 sq km, while Boston is approximately 124 sq km, making Boston 75.64% the size of Stockton.
Tip: This to-scale comparison of Stockton vs. Boston 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.