District of Columbia is about 626 times smaller than Cuba.

Cuba is approximately 110,860 sq km, while District of Columbia is approximately 177 sq km, making District of Columbia 0.16% the size of Cuba. Meanwhile, the population of Cuba is ~11.0 million people (10.4 million fewer people live in District of Columbia).
Tip: This to-scale comparison of Cuba vs. District of Columbia 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.