Does official survey data understate growth in the US-born population?
Core argument: The authors estimate the cumulative increase in the U.S.-born population since 2010 was about 1.4 million larger than published data show, and the foreign-born increase 1.7 million larger.
We assume the mortality rate is the same at each age for the U.S.-born and foreign-born, and that net international migration adds only to the foreign-born population. We estimate that the cumulative increase in the U.S.-born population since 2010 was about 1.4 million greater than in the published data and the increase in the foreign-born population was 1.7 million greater. The difference in the recent growth in the U.S. born population between CPS reports and our own estimates is particularly noteworthy. The published data show a decline in the U.S.-born population between January 2023 and January 2024. This is at odds with the fact that the number of U.S.-born people turning 16 in 2023 far exceeded the number of deaths in 2023. In contrast, our estimate is that the U.S.-born population increased by 1.5 million, a similar pace to the preceding year.




