By ag 15-18 the average boy is done growing, while others are within 1-2" of adult height. So, the average range is 66" (5'6")-75" (6'3"). The median (average) is 71" (5'11").
The average height of males very from person to person and age to age. Males can range from almost any size during and after puberty, some can be in the five feet, some six, and pretty much anything...