When did the population of Pakistan surpass that of the United States?

According to the data of the United Nations, as of 202 1, the population of Pakistan is estimated to be about 225 million. According to the data of the US Census Bureau, as of 20021,the population of the United States is estimated to be about 332 million. So the population of the United States still exceeds that of Pakistan.

However, predicting population growth is a complex problem, which is influenced by many factors, such as birth rate, mortality rate, immigration and emigration. And the population growth rate of different countries will be different. So it is impossible to accurately predict when Pakistan will surpass the population of the United States. If we want to make a specific prediction, we often need to consider more factors and data and conduct in-depth research and analysis.