Pennsylvania is about 30 times bigger than Sydney.

Sydney (the 30 councils of metropolitan Sydney, without the Blue Mountains, Hawkesbury, Wollondilly and the Central Coast) is approximately 3,810 sq km, while Pennsylvania is approximately 116,075 sq km, making Pennsylvania 2,947% larger than Sydney.
Tip: This to-scale comparison of Sydney vs. Pennsylvania uses the Mercator projection, which distorts the size of regions near the poles.
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