Nebraska is about 1.5 times bigger than Greece.

Greece is approximately 131,957 sq km, while Nebraska is approximately 199,099 sq km, making Nebraska 51% larger than Greece. Meanwhile, the population of Greece is ~10.5 million people (8.7 million fewer people live in Nebraska).
Tip: This to-scale comparison of Greece vs. Nebraska uses the Mercator projection, which distorts the size of regions near the poles.
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