Algeria is about 13 times bigger than North Dakota.

North Dakota is approximately 178,647 sq km, while Algeria is approximately 2,381,740 sq km, making Algeria 1,233% larger than North Dakota. Meanwhile, the population of North Dakota is ~672,591 people (43.5 million more people live in Algeria).
Tip: This to-scale comparison of North Dakota vs. Algeria uses the Mercator projection, which distorts the size of regions near the poles.