Accorind to these definitions, those of us born in 1978 and 1979 or left out. :-)
Generation Y. This generation, also tagged the millennial generation and the echo or boomlet generation, includes those born between 1980 and 2000. Generation Y is the most ethnically diverse generation yet and is more than three times the size of generation X. Gen Y teenagers have an average of $100 per week disposable income, and 40 percent of them hold at least a part-time job. One in four lives in a single-parent household and three out of four have working mothers.
Generation X. Generation X is a label applied to young adults who were born between 1965 and 1977. Originally tagged with a reputation of being selfish slackers, this generation has matured and is known for strong family values. While baby boomers strove to do better financially than their parents, gen Xers are more likely to focus on their relationship with their children.
Baby boomers. Born between the years of 1946 and 1964, baby boomers make up the largest segment of the U.S. population. By 1995, 80 percent of baby boomers had children living with them. Today, those on the leading edge of the boomer generation are becoming grandparents.