Generation Z, also called Gen Z, is the generational cohort following millennials, born between the late 1990s and early 2010s. Generational cohorts are defined by birth years rather than age, so the age range of Gen Z will continue to shift over time. Most sources agree that Gen Z begins around 1997 and ends around 2010, so as of 2020, the Generation Z age range is roughly between 10 and 23 years old. Many of the oldest members of Gen Z now make up a significant portion of the workforce.