Generation X, often shortened to Gen X, is the demographic cohort following the Baby Boomers and preceding Millennials. Researchers and popular media often use the mid-1960s as its starting birth years and the late 1970s to early 1980s as its ending birth years, with the generation generally defined as people born from 1965 to 1980. By this definition and U.S. census data, there are 65.2 million Gen Xers in the United States as of 2019. Most Gen Xers are the children of the Silent Generation and older Baby Boomers, and many are the parents of Generation Z.