Millennial immigrants keep growing the largest generation

The Millennial generation, aged 21 to 36, is continuing to grow due to an influx of Millennial-aged immigrants and is forecasted to overtake Boomers in population next year. The generation isn't expected to peak until 2036, at 76.2 million people, according to a study by Pew Research.

By the numbers: 39% of foreign born U.S. citizens and 48% of foreign born non-citizens are between the ages of 25 and 44, according to the 2016 American Community Survey by the Census Bureau.