Experts Experts 76.4 million births during those 19 years members of this generation 76.4 million baby boomers Experts a quarter of the U.S. population Just how many Baby Boomers are there? 76.4 million members of this generation 76.4 million births during those 19 years Experts recent census data 74.6 million babies were born in the U.S. Experts 76 million strong 79 million Experts