It finally happened, Millennials are now America’s largest generation according to population estimates from the US Census Bureau. Millennials, those ages 18-34 in 2015, now number 75.4 million, surpassing the 74.9 million Baby Boomers, ages 51-69. Generation X, ages 35-50 in 2015 is projected to pass the Boomers in population by 2028.
The Millennial generation continues to grow as young immigrants
expand its ranks. Boomers, whose generation was defined by the
boom in US births following World War II are older and their
numbers shrinking as their number of deaths exceeds the number
of older immigrants arriving in the country. With immigration
adding more numbers to its group than any other, the Millennial
population is projected to peak in 2036 at 81.1 million.
Pew Research Center established that the oldest Millennial was
born in 1981 and the youngest Millennial was born in 1997.