Slovenia is about 115 times bigger than District of Columbia.

District of Columbia is approximately 177 sq km, while Slovenia is approximately 20,273 sq km, making Slovenia 11,354% larger than District of Columbia. Meanwhile, the population of District of Columbia is ~601,723 people (1.5 million more people live in Slovenia).
Tip: This to-scale comparison of District of Columbia vs. Slovenia uses the Mercator projection, which distorts the size of regions near the poles.
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