How Old Is Gen Z In 2025. Today, there are 68.6 million gen zs living in the united states,. A demographic cohort succeeding millennials, gen z is generally defined as those who were born between 1997 and 2009.

A demographic cohort succeeding millennials, gen z is generally defined as those who were born between 1997 and 2009. However, based on widespread consensus as well as new gen z analysis by the pew research center, and the one generation defined by the u.s.