California is about 2.8 times smaller than Colombia.

Colombia is approximately 1,138,910 sq km, while California is approximately 403,882 sq km, making California 35.46% the size of Colombia. Meanwhile, the population of Colombia is ~49.1 million people (11.8 million fewer people live in California).
Tip: This to-scale comparison of Colombia vs. California 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.