They fade into one another, so you will see an overlap of age. Without further adieu, here are the ranges: Baby Boomers: 1946~1953 to 1964. This would make baby boomers, in the year 2010, somewhere in the ballpark of 46-64 years old. Gen X: 1965 to 1976~1982. This would make generation X, in the year 2010, somewhere in the ballpark of 28-45 years old.