Utah is about 1.2 times bigger than North Dakota.

North Dakota is approximately 178,647 sq km, while Utah is approximately 212,751 sq km, making Utah 19% larger than North Dakota. Meanwhile, the population of North Dakota is ~672,591 people (2.1 million more people live in Utah).
Tip: This to-scale comparison of North Dakota vs. Utah uses the Mercator projection, which distorts the size of regions near the poles.