Djibouti is about 40 times smaller than Nigeria.

Nigeria is approximately 923,768 sq km, while Djibouti is approximately 23,200 sq km, making Djibouti 2.51% the size of Nigeria. Meanwhile, the population of Nigeria is ~237.5 million people (236.3 million fewer people live in Djibouti).
Tip: This to-scale comparison of Nigeria vs. Djibouti uses the Mercator projection, which distorts the size of regions near the poles.
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