District of Columbia is about 12,238 times smaller than Greenland.

Greenland is approximately 2,166,086 sq km, while District of Columbia is approximately 177 sq km, making District of Columbia 0.01% the size of Greenland. Meanwhile, the population of Greenland is ~57,792 people (543,931 more people live in District of Columbia).
Tip: This to-scale comparison of Greenland vs. District of Columbia uses the Mercator projection, which distorts the size of regions near the poles.
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