United States is about 174 times bigger than Croatia. Croatia is approximately 56,594 sq km,while United States is approximately 9,833,517 sq km. Meanwhile, the population of Croatia is ~4.3 million people(322.3 million more people live in United States). This to-scale map shows a size comparison of Croatia compared to United States. For more details, see an in-depthcomparison of United States vs. Croatiausing our country comparison tool. Other popular comparisons: