Generation X (or Gen X for short) is the demographic cohort following the baby boomers and preceding the millennials. Researchers and popular media use the mid-to-late 1960s as starting birth years and the late 1970s to early 1980s as ending birth years, with the generation being generally defined as people born from 1965 to 1980. Harvard University defines Generation X as those people born between 1969 and 1984. By this definition and U.S. Census data, there are 65.2 million Gen Xers in the United States as of 2019. Most members of Generation X are the children of the Silent Generation and early boomers; Xers are also often the parents of millennials and Generation Z.