Pennsylvania is about 860 times bigger than Christmas Island.

Christmas Island is approximately 135 sq km, while Pennsylvania is approximately 116,075 sq km, making Pennsylvania 85,881% larger than Christmas Island. Meanwhile, the population of Christmas Island is ~2,205 people (12.7 million more people live in Pennsylvania).
Tip: This to-scale comparison of Christmas Island vs. Pennsylvania uses the Mercator projection, which distorts the size of regions near the poles.
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