How Big Is Gen Z?
The cohort's size against every other named generation, with the share of world population each one holds and which is the largest ever recorded.
Generation Z numbers roughly 1.7 billion people worldwide across thirteen birth years, which places it behind Generation Alpha and Millennials but ahead of Generation X — though part of that ordering is simply how many years each band covers.
How Big Is Gen Z?
Frequently asked
Is Gen Z the biggest generation?
No. Generation Alpha is larger at about 2 billion, and Millennials are slightly larger than Gen Z. Gen Z also covers fewer birth years than either.
Why is Generation Beta so small?
Because it opened on 1 January 2025 and only has about one year of births so far. It is projected to reach roughly 2.1 billion by 2039.
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