North Dakota is about 1.4 times smaller than Michigan.

Michigan is approximately 250,493 sq km, while North Dakota is approximately 178,647 sq km, making North Dakota 71.32% the size of Michigan. Meanwhile, the population of Michigan is ~9.9 million people (9.2 million fewer people live in North Dakota).
Tip: This to-scale comparison of Michigan vs. North Dakota uses the Mercator projection, which distorts the size of regions near the poles.
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