In order to keep the Millennial generation analytically meaningful, and to begin looking at what might be unique about the next cohort, Pew Research Center will use 1996 as the last birth year for Millennials for our future work. Anyone born between 1981 and 1996 (ages 22-37 in 2018) will be considered a Millennial, and anyone born from 1997 onward will be part of a new generation. Since the oldest among this rising generation are just turning 21 this year, and most are still in their teens, we think it’s too early to give them a name – though The New York Times asked readers to take a stab – and we look forward to watching as conversations among researchers, the media and the public help a name for this generation take shape. In the meantime, we will simply call them “post-Millennials” until a common nomenclature takes hold.
Source: Where Millennials end and post-Millennials begin | Pew Research Center