Louisiana 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 Louisiana is approximately 112,825 sq km, making Louisiana 2,861% larger than Sydney.
Tip: This to-scale comparison of Sydney vs. Louisiana uses the Mercator projection, which distorts the size of regions near the poles.
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