French Polynesia is about 43 times smaller than North Dakota.

North Dakota is approximately 178,647 sq km, while French Polynesia is approximately 4,167 sq km, making French Polynesia 2.33% the size of North Dakota. Meanwhile, the population of North Dakota is ~672,591 people (373,235 fewer people live in French Polynesia).
Tip: This to-scale comparison of North Dakota vs. French Polynesia uses the Mercator projection, which distorts the size of regions near the poles.