How old do you have to be to be in the class of 2019?

To be in the class of 2019, a student typically would have been born around 2001. Most students graduate high school at around 17 or 18 years old, which means they would have been 17 or 18 years old during their graduation year in 2019. Therefore, as of now, individuals from the class of 2019 would be approximately 22 to 23 years old.