Aruba is about 129 times smaller than Djibouti.

Djibouti is approximately 23,200 sq km, while Aruba is approximately 180 sq km, making Aruba 0.78% the size of Djibouti. Meanwhile, the population of Djibouti is ~1.2 million people (1.1 million fewer people live in Aruba).
Tip: This to-scale comparison of Djibouti vs. Aruba uses the Mercator projection, which distorts the size of regions near the poles.
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