Idaho is about 11 times smaller than Algeria.

Algeria is approximately 2,381,740 sq km, while Idaho is approximately 214,314 sq km, making Idaho 9.0% the size of Algeria. Meanwhile, the population of Algeria is ~44.2 million people (42.6 million fewer people live in Idaho).
Tip: This to-scale comparison of Algeria vs. Idaho uses the Mercator projection, which distorts the size of regions near the poles.