This year, millennials will overtake Boomers as the largest living generation in the U.S.

The Pew Research Center has found that millennials will overtake Baby Boomers this year as the nation's largest living generation, according to projections from the U.S. Census Bureau. Millennials, defined as those who are ages 18 to 34, will number 75.3 million by the end of this year, while there will only be 74.9 million Baby Boomers at the end of the year. As for Gen X -- those who are ages 35 to 50 -- they will outnumber Boomers by 2028.