Trinity Lutheran School - Serves students from Harford and Baltimore Counties with full day child care, full day kindergarten, nursery and preschool programs, and a parochial school for grades 1 through 8. Profile, news and calendar. Magnolia Elementary School - School overview, profile, and performance report. Joppatowne Elementary School - School overview, profile, and performance report. Riverside Elementary School - School overview, profile, and performance report. Joppatowne High School - Information about activities, athletics, classes, and events. Magnolia Middle School - Find information about clubs, activities, school handbook, and the PTA.