District of Columbia is about 13,456 times smaller than Algeria.

Algeria is approximately 2,381,740 sq km, while District of Columbia is approximately 177 sq km, making District of Columbia 0.01% the size of Algeria. Meanwhile, the population of Algeria is ~44.2 million people (43.6 million fewer people live in District of Columbia).
Tip: This to-scale comparison of Algeria vs. District of Columbia uses the Mercator projection, which distorts the size of regions near the poles.
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