Iraq is about 1.2 times bigger than Montana.

Montana is approximately 376,979 sq km, while Iraq is approximately 438,317 sq km, making Iraq 16% larger than Montana. Meanwhile, the population of Montana is ~989,415 people (39.5 million more people live in Iraq).
Tip: This to-scale comparison of Montana vs. Iraq uses the Mercator projection, which distorts the size of regions near the poles.
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