Sydney is about 34 times smaller than Alabama.

Alabama is approximately 131,426 sq km, while Sydney (the 30 councils of metropolitan Sydney, without the Blue Mountains, Hawkesbury, Wollondilly and the Central Coast) is approximately 3,810 sq km, making Sydney 2.9% the size of Alabama.
Tip: This to-scale comparison of Alabama vs. Sydney uses the Mercator projection, which distorts the size of regions near the poles.
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