Christmas Island is about 81 times smaller than Jamaica.

Jamaica is approximately 10,991 sq km, while Christmas Island is approximately 135 sq km, making Christmas Island 1.23% the size of Jamaica. Meanwhile, the population of Jamaica is ~2.8 million people (2.8 million fewer people live in Christmas Island).
This to-scale comparison of Jamaica vs. Christmas Island uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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