Demographics, Immigration and Future Economic Growth of the United States
Americans SUMMARY The longer-run projection is a population of about 335 million people in 2100 (Lancet), about the same number as today. But there is a very wide range of uncertainty around this projection, partly depending on future birth rates and levels of immigration. The U.S. birth rate is around 1.6, below the replacement level of 2.1. This is inline with most industrialized countries but higher than Japan and China. Because of demographics, the United States could have a better economic future than almost any other industrial or industrializing country. Almost all these countries will experience declining populations (if levels of immigration do not substantially increase), many with population decreases of 30-50%. Also, most of these countries will have higher dependency ratios (a higher percent of old people) than the U.S. That is, the U.S. will have a relatively younger population. This is partly due to higher birth rates and high rates of immigration into the U.S.