---
title: "The Millennial Count"
description: "The size of the Millennial generation is about equal to the size of the Boomer generation -- but for a different reason."
date: "2010-03-22"
authors:
  - name: "Russell Heimlich"
    job_title: "Former web developer"
    link: "https://www.pewresearch.org/staff/russell-heimlich/"
url: "https://www.pewresearch.org/short-reads/2010/03/22/the-millennial-count/"
categories:
  - "Comparison of Generations"
---

# The Millennial Count

If one were to assume that the Millennial generation, like the famously-large Baby Boomer generation, encompasses everyone born over an 18-year span, the two generations would be about equal in size (77 million). However, this is not because fertility rates in recent times have been especially high — they were about 70% higher during the baby boom from 1946 to 1964 — but because population growth, including a big wave of immigration since then, has added more women of child-bearing age. As a result, the Millennial generation is more ethnically diverse, including about twice as many persons of Hispanic origin (19% of all Millennials) as did the Boomer generation (10%). [Read More](https://www.pewresearch.org/pubs/1501/%20millennials-new-survey-generational-personality-upbeat-open-new-ideas-technology-bound)