St. Mary's High School 

The curriculum of St. Mary’s Schools is intended to be comprehensive enough to provide quality educational opportunities for the youth of the O’Neill area.  The academic curriculum at St. Mary’s Junior-Senior High School is in compliance with the State of Nebraska and Archdiocesan directives.


The core classes required for graduation are: Religion (40 hours), Business (15 hours), English (45 hours), Physical Education (10 hours), Social Studies (40 hours), Mathematics (20 hours), Science (20 hours), Fine Arts (10 hours), Foreign Language (20 hours).


St. Mary’s includes in its program a combination of Catholic doctrine, moral motivation and spiritual experiences that allow the youth the opportunity to develop strong faith and Christian principle.