In Hawaii, Nevada, New Mexico, Texas, and California, as well as the District of Columbia, less than 35 percent of the population under the age of 10 is White. (source: https://www.brookings.edu/blog/the-...ration-z-plus-is-minority-white-census-shows/ , just below figure 2 ) There's been a huge amount of immigration over the last 35 years. (California and Texas alone contain 21% of the entire U.S. population, just to put things into a little perspective. The District of Columbia is Washington D.C., for any of you who did not know.) Half of the U.S. White population is over the age of 45. (compare that with Hispanics in the U.S., half of whom are under the age of 28. ) Only about 36.5 percent of the total current population in the U.S. is composed of white people under the age of 45. (calculation: median age for whites is 45, meaning half are younger than that, 72.5 percent of total population is white, 0.5 multiplied by 0.725 = 0.365 approximately = 36.5% ) Those people over the age of 45 are done having any more children and are going to be the first ones to die off. Thus their existence is kind of irrelative to calculating future demographics. The immigrant demographic is much younger than the native-born demographic. This is in part due to older people from immigrant-origin countries being less likely to immigrate to the U.S., and partly due to earlier ages of having children and higher fertility rates of the immigrant demographic. As you can see, even if the U.S. stopped taking in all immigration tomorrow, the country would still be set up for a huge demographic change in the coming years.
