This is the graying of America, the shift toward a much older population that's been forecast for a long time. In ten years, the most common age for whites will be 65 or thereabouts (depending on how well those years go). The most common age for white Americans last year was 55 -- meaning they were born in 1960, at the tail end of the Baby Boom. So the most common age in 10 years might again be 8, or 5 or 11. The most common age for Hispanics in 2015 was 8.
Source: Washington Post July 07, 2016 16:41 UTC