North Dakota is about 13 times smaller than Algeria.

Algeria is approximately 2,381,740 sq km, while North Dakota is approximately 178,647 sq km, making North Dakota 7.5% the size of Algeria. Meanwhile, the population of Algeria is ~44.2 million people (43.5 million fewer people live in North Dakota).
Tip: This to-scale comparison of Algeria vs. North Dakota uses the Mercator projection, which distorts the size of regions near the poles.