Following rapid growth in Adams County throughout the 1990s, Horizon High School quickly filled to capacity and by 1999 the campus had 20 portable classrooms outside the school's main building.[6]
Originally, the school only had grades 10-12. The graduating class of 1998 was the first freshman class to attend the school.
Horizon's goals are simple: to provide learning programs for each individual student that fits his/her needs; to emphasize academic courses that challenge each student to grow intellectually; to teach students to think critically, master basic skills, develop healthful lifestyles and become active citizens; and finally, to install Horizon PRIDE in each and every student.
Athletics
Horizon High School fields teams that compete in interscholastic competition in baseball, basketball, cross-country, football, golf, gymnastics, soccer, softball, swimming, diving, tennis, track and field, volleyball and wrestling.
Jeremy McKinney, 1994, offensive lineman for the St Louis Rams, Cleveland Browns, Dallas Cowboys, picked in the 11th round of the expansion draft by the Houston Texans[12]