United States is about 9 times bigger than Colombia.
Colombia is approximately 1,138,910 sq km, while United States is approximately 9,833,517 sq km. Meanwhile, the population of Colombia is ~47 million people (277 million more people live in United States).
This to-scale map shows a size comparison of Colombia compared to United States. For more details, see an in-depth comparison of United States vs. Colombia using our country comparison tool.
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