Pennsylvania is about 13 times smaller than Alaska.

Alaska is approximately 1,481,348 sq km, while Pennsylvania is approximately 116,075 sq km, making Pennsylvania 7.84% the size of Alaska. Meanwhile, the population of Alaska is ~710,231 people (12.0 million more people live in Pennsylvania).
This to-scale comparison of Alaska vs. Pennsylvania uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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