Dominican Republic is about 3 times smaller than Illinois.

Illinois is approximately 143,961 sq km, while Dominican Republic is approximately 48,670 sq km, making Dominican Republic 33.81% the size of Illinois. Meanwhile, the population of Illinois is ~12.8 million people (2.1 million fewer people live in Dominican Republic).
Tip: This to-scale comparison of Illinois vs. Dominican Republic uses the Mercator projection, which distorts the size of regions near the poles.
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