Health What is 4 year old preschool called? What is 4 year old preschool called? Depending on state licensing regulations and enrollment needs, the preschool age range is typically from 2 ½ to 4 ½ years old; children in a pre-kindergarten class are generally 4 or 5 years old.Sep 19, 2021 Related Posts:What is kindergarten called in America?What is a good price for preschool?What concepts should preschoolers learn?What are the qualifications to be a preschool teacher?